s804637_06282011.htm

Title of Securities to be registered	Amount to be registered(1)		Proposed Maximum offering price per share			Proposed Maximum Aggregate Offering Price			Amount of Registration fee
Common Stock, par value $.001 per share: restricted shares issued and outstanding under the 2010 Outside Directors Equity Compensation Plan		70,000	$	4.07	(2)	$	284,900	(2)	$	33.08
Common Stock, par value $.001 per share: shares reserved for future issuance under the 2010 Outside Directors Equity Compensation Plan		330,000	$	4.07	(2)	$	1,343,100	(2)	$	155.93
Common Stock, par value $.001 per share: shares subject to outstanding options held by James P. McNiel under a Stand-Alone Stock Option Agreement between the Company and James P. McNiel		1,220,000	$	3.22	(2) (3)	$	3,928,400	(2)	$	456.09
TOTAL		1,620,000				$	5,556,400		$	645.10

(1)

Pursuant to Rule 416(c) under the Securities Act of 1933, as amended (the “Securities Act”) this Registration Statement also covers an indeterminate amount of interests to be offered or sold pursuant to the employee benefit plans described herein. There are also registered hereby such indeterminate number of shares of Common Stock, $.001 par value (the “Common Stock”) as may become issuable by reason of the operation of the anti-dilution provisions of the FalconStor Software, Inc. (the “Company”) 2010 Outside Directors Equity Compensation Plan (the “2010 Plan”) and the Stand-Alone Stock Option Agreement between the Company and James P. McNiel (the “McNiel Option Agreement”).

(2)

Includes 1,220,000 shares with respect to which options were granted at an exercise price of $3.22 per share. With respect to the restricted shares of Common Stock and the remaining shares available for issuance under the 2010 Plan, pursuant to Rule 457(h) under the Securities Act of 1933, as amended (the “Securities Act”), the offering price per share, solely for the purpose of determining the registration fee, is equal to the average trading price of the Company’s Common Stock as reported on the Nasdaq Global Market on June 22, 2011 of $4.07 per share.

The Company has prepared this Registration Statement in accordance with the requirements of Form S-8 under the Securities Act, to register 400,000 shares of Common Stock, $.001 par value per share, of the Company issuable or issued pursuant to the 2010 Plan and 1,220,000 shares of Common Stock, $.001 par value per share, of the Company issuable upon the exercise of stock options granted pursuant to the McNiel Option Agreement. The Company previously registered 1,500,000 shares (Registration No. 333-139032) under the Company’s 2006 Plan, 8,662,296 shares (Registration No. 333-69834) and 2,000,000 shares (Registration No. 333-103925) under the Company’s 2000 Stock Option Plan (the “2000 Plan”), an aggregate of 3,800,000 shares (Registration No. 333-125126) under the 2000 Plan and the Company’s 2004 Outside Directors Stock Option Plan (the “2004 Plan”) and an aggregate of 18,600,000 shares (Registration No. 333-145475) under the Company’s 2006 Plan and 2007 Plan. Pursuant to General Instruction E to Form S-8, the contents of the prior registration statements relating to the 2000 Plan, the 2004 Plan, the 2006 Plan, and the 2007 Plan, and all periodic reports that the Company filed after such Registration Statements to maintain current information about the Company are hereby incorporated by reference.

This Form S-8 includes a Reoffer Prospectus prepared in accordance with Part I of Form S-3 under the Securities Act. The Reoffer Prospectus may be utilized for reofferings and resales of shares of Common Stock acquired pursuant to the (i) 2000 Plan, (ii) the 2004 Plan, (iii) the 2006 Plan, (iv) the 2007 Plan, (v) the Company’s 1994 Outside Directors Stock Option Plan, (vi) the 2010 Plan and (vii) the McNiel Option Agreement, the shares of which were previously registered.

The documents containing the information concerning the Plans required by Item 1 of this Registration Statement on Form S-8, and the statement of availability of registrant information, employee benefit plan annual reports and other information required by Item 2 of Form S-8, will be sent or given to persons eligible to participate in the Plans as specified by Rule 428(b)(1) under the Securities Act. We will maintain a file of such documents in accordance with the provisions of Rule 428 and, upon request, shall furnish to the Commission or its staff a copy or copies of documents included in such file. Pursuant to the instructions to Form S-8, these documents are not required to be and are not being filed either as part of this Registration Statement or as prospectuses or prospectus supplements pursuant to Rule 424 under the Securities Act. These documents and the documents incorporated by reference in this Registration Statement pursuant to Item 3 of Part II of Form S-8, taken together, constitute part of a prospectus that meets the requirements of Section 10(a) of the Securities Act.

Any of the documents incorporated by reference in Item 3 of Part II of this Registration Statement (which documents are incorporated by reference in this Section 10(a) prospectus) and the other documents required to be delivered to employees pursuant to Rule 428(b) will be available without charge to participants in the Plans upon written or oral request by contacting:

This prospectus relates to the reoffer and resale by certain selling stockholders of shares of FalconStor Software, Inc. (“FalconStor”, the “Company”, “we”, “our” or “us”) that may be issued by us to the selling stockholders upon the exercise of stock options granted under our 2000 Stock Option Plan, our 2004 Outside Directors Stock Option Plan, our 2006 Incentive Stock Plan, our 2007 Outside Directors Equity Compensation Plan, our 1994 Outside Directors Stock Option Plan, our 2010 Outside Directors Equity Compensation Plan and our Stand-Alone Stock Option Agreement between us and James P. McNiel. In addition, this Prospectus relates to 70,000 shares of restricted stock held by the selling stockholders and which were issued under our 2010 Outside Directors Equity Compensation Plan. We previously registered the offer and sale of the shares to the selling stockholders. This Prospectus also relates to certain underlying options and shares of restricted stock that have not as of this date been granted. If and when such options or shares of restricted stock are granted to persons required to use the prospectus to reoffer and resell the shares underlying such options or the shares of restricted stock, we will distribute a prospectus supplement. The shares are being reoffered and resold for the account of the selling stockholders and we will not receive any of the proceeds from the resale of the shares.

The selling stockholders have advised us that the resale of their shares may be effected from time to time in one or more transactions on the Nasdaq Global Market, in negotiated transactions or otherwise, at market prices prevailing at the time of the sale or at prices otherwise negotiated. See “Plan of Distribution.” We will bear all expenses in connection with the preparation of this prospectus.

We have filed a registration statement on Form S-8 with the SEC for our common stock offered in this offering. This prospectus does not contain all the information set forth in the Registration Statement. You should refer to the Registration Statement and its exhibits for additional information. Whenever we make references in this prospectus to any of our contracts, agreements or other documents, the references are not necessarily complete and you should refer to the exhibits to the Registration Statement for copies of the actual contracts, agreements or other documents.

We file annual, quarterly and special reports, proxy statements and other information with the Securities and Exchange Commission (the “SEC”). You may read and copy any document we file at the SEC’s public reference room located at 100 F Street, N.E., Washington, D.C. 20549. You may obtain further information on the operation of the public reference room by calling the SEC at 1-800-SEC-0330. Our SEC filings are also available to the public over the Internet at the SEC’s Web site at http://www.sec.gov. You may also request copies of such documents, upon payment of a duplicating fee, by writing to the SEC at 100 F Street, N.E., Washington, D.C. 20549. Reports, proxy statements and other information concerning us can also be inspected at the Nasdaq Global Market Operations, 1735 K Street, N.W., Washington, D.C. 20006. You may also find recent documents we filed on our website at www.falconstor.com.

The SEC allows us to incorporate by reference the information we file with it, which means that we can disclose important information to you by referring you to those documents. The information we incorporate by reference is considered to be part of this prospectus, and information that we file later with the SEC will automatically update and supersede this information. We incorporate by reference the documents listed below and any future filings made by us with the SEC under Sections 13(a), 13(c), 14 or 15(d) of the Securities Exchange Act of 1934, until the sale of all the shares of Common Stock that are part of this offering. The documents we are incorporating by reference are as follows:

This prospectus is part of a registration statement we filed with the SEC. You should rely only on the information provided or incorporated by reference in this prospectus or any related supplement. We have not authorized anyone else to provide you with different information. The Selling Stockholders will not make an offer of these shares in any state where the offer is not permitted. You should not assume that the information in this prospectus or any supplement is accurate as of any other date than the date on the front of those documents.

On September 29, 2010, the Company announced that it had accepted the resignation of ReiJane Huai, its President and Chief Executive Officer, and the Chairman of its Board of Directors, following his disclosure to the Company that certain improper payments allegedly were made in connection with the Company’s licensing of software to one customer. At the same time, the Company announced that it was cooperating fully with law enforcement authorities with respect to an ongoing investigation into the matter, that it had formed a Special Committee of the Board to conduct a full internal investigation, and that the Special Committee had retained counsel to assist it in its investigation. In addition, the counsel to the Special Committee retained independent forensic accountants to review the Company’s practices. On November 10, 2010, counsel retained to assist with the internal investigation presented its report to the Special Committee.

As part of the internal investigation, counsel to the Special Committee interviewed numerous employees and reviewed internal Company documents but was unable to speak with Mr. Huai and one sales person allegedly involved with the improper payments. On November 10, 2010, counsel to the Special Committee presented its report to the Special Committee. After a detailed review of this matter, the Special Committee concluded that (i) certain employees of one customer of the Company either directly or indirectly received various forms of compensation from the Company between 2008 and 2010, (ii) no more than three Company employees were knowingly involved in procuring these payments, and (iii) there was no evidence of a pattern of improper payments to other customers by the Company. Based upon the information in its possession, the Company determined that the payments at issue did not have any effect on the Company’s revenue recognition and did not result in any material misstatement of the Company’s financial information in its filings with the Securities and Exchange Commission. Additionally, after the conclusion of its investigation, the Special Committee recommended a number of enhancements to the Company’s controls and procedures. The Board of Directors has accepted these recommendations and the Company has implemented or is in the process of implementing the changes to its controls and procedures.

Initially, the New York County District Attorney’s Office commenced an investigation but thereafter, for reasons unknown to the Company, ceased its investigation. Separately, the U.S. Attorney’s Office for the Eastern District of New York (“USAO”) and the U.S. Securities and Exchange Commission (“SEC”) each commenced investigations.

In October 2010, in connection with the USAO investigation, the Company received a grand jury subpoena seeking all documents relating to the Company’s September 29, 2010, disclosure of the improper payments. Since that time, the Company has received additional subpoenas and document requests from the USAO seeking, among other things, documents relating to certain of the Company’s employees and other information about the Company.

Also in October 2010, the Company received a subpoena from the SEC seeking, among other things, documentation relating to the Company’s dealings with the customer in connection with whose licensing of software improper payments were made and documentation relating to certain of the Company’s accounting practices. Since that time, the Company has received additional subpoenas seeking among other things, information related to certain of the Company’s employees, customers, policies and practices.

We are cooperating fully with the investigations of both the USAO and the SEC and have produced documents responsive to both subpoenas and the additional document request. We intend to produce more documentation, if and when requested by the USAO and the SEC and to continue to cooperate fully with both investigations. The Company has recorded an accrual of $1.5 million in the first quarter of 2011 for certain costs associated with the possible resolution of the government investigations. Notwithstanding the foregoing, the Company cannot predict the scope, timing, or outcome of the investigations, nor can it predict what impact, if any, these matters may have on the Company’s business, financial condition, results of operations, and statement of cash flow.

We cannot predict the scope, timing, or outcomes of the USAO and SEC investigations, which may include the institution of administrative, civil injunctive, or criminal proceedings, the imposition of fines and penalties, which may be significant, suspensions or debarments from government contracts, and other remedies and sanctions, any of which could lead to an adverse impact on our credit ratings and ability to obtain financing, an adverse impact on our stock price, loss of additional senior management, the inability to attract or retain key employees, and the loss of customers. In addition, under the law, any illegal acts of our employees may be ascribed to us. We cannot predict what impact, if any, these matters may have on our business, financial condition, results of operations, and liquidity.

In October 2010, two purported securities class actions (the “Actions”) were filed in the United States District Court for the Eastern District of New York on behalf of purchasers of the common stock of the Company between February 5, 2009 and September 29, 2010. The two Actions contain substantially similar allegations and causes of actions. The complaint in each of the Actions name as defendants the Company and Mr. Huai, as well as Wayne Lam an officer of the Company and James Weber the Company’s Chief Financial Officer and interim Chief Operating Officer. The complaints in each of the actions allege that the defendants made a series of materially false and misleading statements related to the Company’s business and operations in violation of the Securities Exchange Act of 1934, as amended. The following adverse facts are alleged: (i) that FalconStor was experiencing weak demand for its products and services; (ii) that FalconStor was making improper payments to secure a contract with at least one of its customers; and (iii) as a result of the foregoing, the defendants lacked a reasonable basis for their positive statements about FalconStor and its prospects. The plaintiffs in each Action seek damages from the defendants. On November 1, 2010, the parties to one of the two Actions entered into a stipulation setting forth a schedule for an amended complaint and an answer or other response thereto. On November 3, 2010, the Actions were consolidated before Judge Edward R. Korman, and the Company anticipates that it will be receiving an amended complaint (the combined Actions are referred to as the “Class Action”).

We cannot predict when the Class Action will be resolved or its outcome. While we have insurance policies that we believe cover us for the allegations of the Class Action, there can be no assurance that the amount of insurance will be adequate to cover the costs of our defense of the Class Action or any damages that might be awarded against us or any defendant(s) to whom we owe indemnification. Our insurers may deny coverage under the policies. If the plaintiffs are awarded damages and our insurance is not adequate to cover the amounts, or our insurers deny coverage, the amounts to be paid by the Company could have a significant negative impact on our financial results, our cash flow and our cash reserves.

In January 2011, a Company shareholder filed an action in the Suffolk County Division of the Supreme Court of the State of New York, putatively derivatively on behalf of the Company against the Company, each of the Company’s Directors, and Messrs. Huai, Lam and Weber (the “Derivative Action”). The Derivative Action alleges that the defendants breached their duties to the Company by: (1) causing or allowing the dissemination of false and misleading information; (2) failing to maintain internal controls; (3) failing to manage the Company properly; (4) unjustly enriching themselves; (5) abusing their control of the Company; and (6) wasting Company assets. The Derivative Action alleges that Mssers. Oxenhorn, Fischer, Kaufman, Lieber and Rubenstein breached their duties to the Company by allowing Mr. Huai to resign.

We cannot predict when the Derivative Action will be resolved or its outcome. While we have insurance policies that we believe cover us for the allegations of the Derivative Action, there can be no assurance that the amount of insurance will be adequate to cover the costs of our defense of the Derivative Action or any damages that might be awarded against us or any defendant(s) to whom we owe indemnification. Our insurers may deny coverage under the policies. If the plaintiffs are awarded damages and our insurance is not adequate to cover the amounts, or our insurers deny coverage, the amounts to be paid by the Company could have a significant negative impact on our financial results, our cash flow and our cash reserves.

The market for network storage solutions is highly competitive. Our announcement of improper payments, and the existence of the governmental investigations and the stockholder suits could damage our reputation and harm our ability to compete for customers. We are aware that some of our competitors are already using these facts in attempts to dissuade potential customers from doing business with us. If potential customers choose not to buy our products or services, or not to license our software, it will have a negative impact on our business.

On September 29, 2010, ReiJane Huai, our CEO and President, and the Chairman of our Board of Directors resigned from each of those positions in connection with improper payments made to a customer. Mr. Huai had broad experience and was highly regarded in the network storage solutions industry. Jim McNiel, who had been our Chief Strategy Officer, replaced Mr. Huai on an interim basis. On January 11, 2011, Mr. McNiel was appointed CEO and President. While Mr. McNiel has been a successful software industry executive, and has a broad range of experience in other areas, there can be no guarantee that Mr. McNiel will be able to lead and to grow the Company effectively.

Wai Lam, our Chief Technology Officer resigned effective November 5, 2010. Mr. Lam was involved in the development of nearly all of our software products. While Mr. Lam remains a consultant to us for two years, he no longer remains involved on a day-to-day basis. We have replaced Mr. Lam with another highly skilled engineer, but there can be no guarantee that our product development will continue at the same pace or quality.

We hired a new Vice President of North America Sales in January, 2011. From June 30, 2010 through March 31, 2011, seventy five percent of our North America salespeople were either terminated or left voluntarily. We have replaced more than half of those people and we continue to recruit qualified sales professionals. We believe that the composition of our new sales team is stronger and that we are better positioned for growth. However, it takes time and resources to train new salespeople. The new salespeople also take time to learn our products and to develop new accounts and close sales. There can be no assurances that the new salespeople will be able to learn to sell our products. Nor can there be any assurances that the new salespeople will be able to develop accounts and close sales. We also cannot guarantee that we will be able to recruit all of the salespeople we believe we need.

We have incurred losses in each of the last seven quarters. While we have taken steps to try reduce or eliminate the losses – such as reducing headcount and other expenses and trying to replace lost OEM sales with sales of FalconStor-branded products – there is no guarantee that we will be successful and return to profitability. As of March 31, 2011, we had over $42 million in cash, cash equivalents and marketable securities, and we have had positive cash flows from operations in each of the past two quarters.

We have begun to emphasize sales of turn-key appliances. These appliances consist of our branded software loaded onto industry standard hardware. In some instances, the hardware, while purchased from third parties, is FalconStor branded. There can be no guarantee that we will be more successful selling these appliances than we have been selling software-only solutions.

Supply. We are dependent on third parties for the supply of the hardware. If we cannot obtain adequate supplies of the hardware, we could lose sales and revenues. If our hardware suppliers discontinue certain models, our sales could be disrupted while we find and certify replacement models. If customer orders exceed our expectations, we may not be able to deliver all of the appliances to meet those orders in a particular quarter.

Inventory. In order to mitigate supply issues, we maintain an inventory of appliances. We spend money on this inventory in advance of customer orders. This is money that could have been used for other purposes or that could have been invested. If the inventory is inadequate, we may lose sales or not be able to fulfill orders in a particular quarter. If the inventory is excessive, we could end up with obsolete hardware for which we have paid and for which we are unable to find buyers, leaving us with a loss.

Support. While our suppliers are responsible for providing us with support for their hardware, our customers look to us for support of the entire appliance. We are responsible for coordinating all support for the appliance, whether the problem relates to the software or to the hardware. This increases the burden on our support group and may require us to hire additional support personnel.

Once software is developed, the cost of licensing each individual copy of the software is lower than the cost of selling an appliance. In addition to the costs associated with licensing software, with sales of turn-key appliances we incur the cost of the hardware itself. Margins on hardware sales are typically quite small, so the overall margin on the sale of an appliance is lower than the sale of a license to stand-alone software.

Software license sales to OEMs typically have the highest margins, because no salespeople are compensated, support costs are typically lower, and marketing expenses are minimal. Sales of FalconStor-branded appliances and software require us to compensate salespeople, to provide customer support and to market the products, all of which reduce our profit margins.

The rapidly evolving nature of the data protection and network storage software markets in which we sell our products, the degrees of effort and success of our partners’ sales and marketing efforts, and other factors that are beyond our control, reduce our ability to accurately forecast our quarterly and annual revenue. However, we must use our forecasted revenue to establish our expense budget. Most of our expenses are fixed in the short term or incurred in advance of anticipated revenue. As a result, we may not be able to decrease our expenses in a timely manner to offset any shortfall in revenue.

The continued adoption of Storage Area Networks (IP/iSCSI-, Fibre Channel-, and InfiniBand-based) and Network Attached Storage solutions, disk-based backup and disaster recovery solutions, storage virtualization solutions, deduplication solutions, and virtual environments is critical to our future success. The markets for these solutions are still maturing, making it difficult to predict their potential sizes or future growth rates. If these markets develop more slowly than we expect, our business, financial condition and results of operations would be adversely affected.

We offer products for the small/medium business (SMB) market. Our products may not be attractive to the SMB market, or we may not be able to reach agreements with OEMs and resellers with significant presences in the SMB market. If we are unable to penetrate the SMB market, we will not be able to recoup the expenses associated with our efforts in these markets and our ability to grow revenues could suffer.

The data protection and the network storage software markets continue to evolve and as a result there is continuing demand for new products. Accordingly, we may need to develop and manufacture new products that address additional data protection or network storage software market segments and emerging technologies to remain competitive in the data storage software industry. We are uncertain whether we will successfully qualify new data protection or network storage software products with our customers by meeting customer performance and quality specifications. Any failure to address additional market segments could harm our business, financial condition and operating results.

Our current products are only one part of a storage system. All components of these systems must comply with the same industry standards in order to operate together efficiently. We depend on companies that provide other components of these systems to conform to industry standards. Some industry standards may not be widely adopted or implemented uniformly, and competing standards may emerge that may be preferred by OEM customers or end users. If other providers of components do not support the same industry standards as we do, or if competing standards emerge, our products may not achieve market acceptance, which would adversely affect our business.

Our IPStor platform, the basic building block of all of our solutions, is complex and is designed to be deployed in large and complex networks. Many of our customers have unique infrastructures, which may require additional professional services in order for our software to work within their infrastructures. Because our products are critical to the networks of our customers, any significant interruption in their service as a result of defects in our product could result in damage to our customers. These problems could cause us to incur significant service and engineering costs, divert engineering personnel from product development efforts and significantly impair our ability to maintain existing customer relationships and attract new customers. In addition, a product liability claim, whether successful or not, would likely be time consuming and expensive to resolve and would divert management time and attention. Further, if we are unable to fix the errors or other problems that may be identified in full deployment, we would likely experience loss of or delay in revenues and loss of market share and our business and prospects would suffer.

We offer our software on a stand-alone basis and as part of an appliance in which we install our software onto third party hardware. In addition, we have entered into agreements with resellers and OEM partners to develop storage appliances that combine VTL, CDP, NSS or FDS functionality with third party hardware to create single purpose turnkey solutions that are designed to be easy to deploy. If the storage appliances are not easy to deploy or do not integrate smoothly with end user systems, the basic premise behind the appliances will not be met and sales would suffer.

We deliver some of our products, both through our resellers and directly to end-users, installed on third party hardware. If the hardware does not function properly, our support costs will go up. We will have to arrange or pay for the repair or replacement of the broken hardware and we may have to increase the size of our support operations. Hardware reliability issues could also cause resellers and end-users to refuse to make purchases from us, even if our software products function properly.

Prior to offering our products for sale, our OEM customers typically require that each of our products undergo an extensive qualification process, which involves interoperability testing of our product in the OEM’s system as well as rigorous reliability testing. This qualification of a product by an OEM does not assure any sales of the product to the OEM. Despite this uncertainty, we devote substantial resources, including engineering, sales, marketing and management efforts, toward qualifying our products with OEMs in anticipation of sales to them. If we are unsuccessful or delayed in qualifying any products with an OEM, such failure or delay would preclude or delay sales of that product to the OEM, which may impede our ability to grow our business.

The vast majority of our sales come from sales to end users of our products by our resellers and by our OEM customers. These resellers and OEM customers have limited resources and sales forces and sell many different products, both in the data protection and the network storage software markets and in other markets. The resellers and OEM customers may choose to focus their sales efforts on other products in the data protection and the network storage software markets or other markets. The OEM customers might also choose not to continue to develop or to market products which include our products. This would likely result in lower revenues to us and would impede our ability to grow our business.

We have no control over the shipping dates or volumes of systems incorporation of our product that our OEM customers ship and they have no obligation to ship systems incorporating our software applications. Our OEM customers also have no obligation to recommend or offer our software applications exclusively or at all, and they have no minimum sales requirements. These OEMs also could choose to develop their own data protection and network storage software internally, or to license software from our competitors, and incorporate those products into their systems instead of our software applications. The OEMs that we do business with also compete with one another. If one of our OEMs views our arrangement with another OEM as competing with its products, it may decide to stop doing business with us. Any material decrease in the volume of sales generated by OEMs with whom we do business, as a result of these factors or otherwise, would have a material adverse effect on our revenues and results of operations in future periods.

We rely significantly on our value-added resellers, direct market resellers, systems integrators and corporate resellers, which we collectively refer to as resellers, for the marketing and distribution of our software products and our services. However, our agreements with resellers are generally not exclusive, are generally renewable annually and in many cases may be terminated by either party without cause. Many of our resellers carry products that are competitive with ours. These resellers may give a higher priority to other products, including those of our competitors, or may not continue to carry our products at all. If a number of resellers were to discontinue or reduce the sales of our products, or were to promote our competitors’ products in lieu of ours, it would have a material adverse effect on our future revenues. Events or occurrences of this nature could seriously harm our sales and results of operations. In addition, we expect that a significant portion of our sales growth will depend upon our ability to identify and attract new reseller partners. The use of resellers is an integral part of our distribution network. We believe that our competitors also use reseller arrangements. Our competitors may be more successful in attracting reseller partners and could enter into exclusive relationships with resellers that make it difficult to expand our reseller network. Any failure on our part to expand our network of resellers could impair our ability to grow revenues in the future.

As of June 27, 2011, Huawei Symantec’s accounts receivable balance was 10% of our gross accounts receivable balance. We currently have no reason to expect that Huawei Symantec will fail to pay the amounts invoiced, but the concentration of this receivable means that any failure by Huawei Symantec to pay us would have a material impact on us.

Part of our strategy is to partner with major third-party software and hardware vendors who integrate our products into their offerings and/or market our products to others. These strategic partners often have customer or distribution networks to which we otherwise would not have access or the development of which would take up large amounts of our time and other resources. There is intense competition to establish relationships with these strategic partners. Some of our agreements with our OEM customers grant to the OEMs limited exclusivity rights to portions of our products for periods of time. This could result in lost sales opportunities for us with other customers or could cause other potential OEM partners to consider or select software from our competitors for their storage solutions. In addition, the desire for product differentiation could cause potential OEM partners to select software from our competitors. We cannot guarantee that our current strategic partners, or those companies with whom we may partner in the future, will continue to be our partners for any period of time. If our software was to be replaced in an OEM solution by competing software, or if our software is not selected by OEMs for future solutions, it would likely result in lower revenues to us and would impede our ability to grow our business.

Our future success is partially dependent upon establishing and maintaining successful relationships with the right channel partners. A majority of our revenue is generated by sales through our channel partners, and we expect channel sales to continue to make up the majority of our total revenue in the future. Accordingly, our revenues are largely dependent on the effective sales and lead generation activities of these channel partners.

Recruiting and retaining qualified channel partners and training them in our technology and product offerings requires significant time and resources. In order to develop and expand our distribution channel, we must continue to scale and improve our processes and procedures that support our channel, including investment in systems and training. Those processes and procedures may become increasingly complex and difficult to manage as we grow our organization. We have no minimum purchase commitments from any of our channel partners, and our contracts with these channel partners do not prohibit them from offering products or services that compete with ours. Our competitors may provide incentives to existing and potential channel partners to favor their products or to prevent or reduce sales of our solutions. Our channel partners may choose not to offer our solutions exclusively or at all. Establishing relationships with channel partners who have a history of selling our competitors’ products may also prove to be difficult. In addition, some of our channel partners are also competitors. Our failure to establish and maintain successful relationships with channel partners would harm our business and operating results.

In the past, companies with whom we have OEM relationships have been acquired by other companies. In 2009, Oracle announced it was acquiring Sun and Hewlett Packard announced it was acquiring 3Com, the parent of our Chinese OEM. These acquisitions caused disruptions in the sales and marketing of our products and have negatively impacted our revenues. If additional key customers are acquired, the acquiring entity might choose to stop offering solutions containing our software. Even if the solutions continued to be offered, there might be a loss of focus and sales momentum as the companies are integrated.

The data protection and network storage software markets are intensely competitive even during periods when demand is stable. Some of our current and potential competitors have longer operating histories, significantly greater resources, broader name recognition and a larger installed base of customers than we have. Those competitors and other potential competitors may be able to establish or to expand network storage software offerings more quickly, adapt to new technologies and customer requirements faster, and take advantage of acquisition and other opportunities more readily.

Our services include the assessment and design of solutions to meet our customers’ data protection and storage management requirements and the efficient installation and deployment of our products based on specified business objectives. Further, once our products are deployed, our customers depend on us to resolve issues relating to our products. A high level of service is critical for the successful marketing and sale of our software. If our partners or we do not effectively install or deploy our applications, or succeed in helping our customers quickly resolve post-deployment issues, it would adversely affect our ability to sell software products to existing customers and could harm our reputation with potential customers. As a result, our failure to maintain high quality support and professional services would have a material adverse effect on our sales of our products and results of operations.

Historically, information technology spending has been higher in the fourth and second quarters of each calendar year and somewhat slower in the other quarters, particularly the first quarter. Our quarterly results reflected this seasonality in 2010, and we anticipate that our quarterly results for 2011 will show the effects of seasonality as well.

The market price of our common stock has been volatile in the past and may be volatile in the future. For example, during the past twelve months ended May 31, 2011, the closing market price of our common stock as quoted on the NASDAQ Global Market fluctuated between $2.39 and $4.91. The market price of our common stock may be significantly affected by the following factors:

actual or anticipated fluctuations in our operating results;

failure to meet financial estimates;

changes in market valuations of other technology companies, particularly those in the network storage software market;

announcements by us or our competitors of significant technical innovations, acquisitions, strategic partnerships, joint ventures or capital commitments;

loss of one or more key OEM customers;

departures of key personnel; and

the investigation.

The Financial Accounting Standards Board requires companies to recognize the fair value of stock options and other share-based payment compensation to employees as compensation expense in the statement of operations. However, this expense, which we estimate based on the “Black-Scholes” model, is subject to factors beyond our control. These factors include the market price of our stock on a particular day and stock price “volatility.” These unknowns make it difficult for us to forecast accurately what the amount of share-based compensation expense will be in the future. Because of these factors, our ability to make accurate forecasts of future earnings is compromised.

As of March 31, 2011 we held short-term and long-term marketable securities aggregating $21.3 million. We invest in a mixture of corporate bonds, government securities and marketable debt securities, the majority of which are high investment grade, and we limit the amount of credit exposure through diversification and investment in highly rated securities. However, investing in highly rated securities does not entirely mitigate the risk of potential declines in market value. A further deterioration in the economy, including further tightening of credit markets or significant volatility in interest rates, could cause our marketable securities to decline in value or could impact the liquidity of the portfolio. If market conditions deteriorate significantly, our results of operations or financial condition could be materially and adversely affected.

We are subject to income taxes in both the United States and the various foreign jurisdictions in which we operate. Judgment is required in determining our provision for income taxes and there are many transactions and calculations where the tax determination may be uncertain. Our future effective tax rates could be affected by changes in our (i) earnings or losses; (ii) changes in the valuation of our deferred tax assets; (iii) changes in tax laws; and (iv) other factors. Our ability to correctly predict our future effective tax rates based upon these possible changes could significantly impact our forecasted earnings.

Our Board of Directors has the authority, without further action by the stockholders, to issue up to 2,000,000 shares of preferred stock on such terms and with such rights, preferences and designations, including, without limitation restricting dividends on our common stock, dilution of the voting power of our common stock and impairing the liquidation rights of the holders of our common stock, as the Board may determine without any vote of the stockholders. Issuance of such preferred stock, depending upon the rights, preferences and designations thereof may have the effect of delaying, deterring or preventing a change in control. In addition, certain “anti-takeover” provisions of the Delaware General Corporation Law, among other things, may restrict the ability of our stockholders to authorize a merger, business combination or change of control. Further, we have a staggered Board of Directors and have entered into change of control agreements with certain executives, which may also have the effect of delaying, deterring or preventing a change in control.

As of March 31, 2011, we had options to purchase 12,168,650 shares of our common stock outstanding, and we had an aggregate of 610,442 outstanding restricted shares and restricted stock units. If all of these outstanding options were exercised, and all of the outstanding restricted stock and restricted stock units vested, the proceeds to the Company would average $5.27 per share. We also had 1,709,786 shares of our common stock reserved for issuance under our stock plans with respect to options (or restricted stock or restricted stock units) that have not been granted. On May 9, 2011 our shareholders approved a 1,220,000 stock options award to James P. McNiel, President and Chief Executive Officer. In addition, if, on July 1st of any calendar year in which our 2006 Incentive Stock Plan, as amended (the “2006 Plan”), is in effect, the number of shares of stock to which options, restricted shares and restricted stock units may be granted is less than five percent (5%) of the number of outstanding shares of stock, then the number of shares of stock available for issuance under the 2006 Plan shall be increased so that the number equals five percent (5%) of the shares of stock outstanding. In no event shall the number of shares of stock subject to the 2006 Plan in the aggregate exceed twenty million shares, subject to adjustment as provided in the 2006 Plan. See Note (2) Share-Based Payment Arrangements to the unaudited condensed consolidated financial statements on our Quarterly Report on Form 10-Q for the three months ended March 31, 2011.

The exercise of all of the outstanding options and/or the vesting of all outstanding restricted shares and restricted stock units and/or the grant and exercise of additional options and/or the grant and vesting of restricted stock and restricted stock units would dilute the then-existing stockholders’ percentage ownership of common stock, and any sales in the public market of the common stock issuable upon such exercise could adversely affect prevailing market prices for the common stock. Moreover, the terms upon which we would be able to obtain additional equity capital could be adversely affected because the holders of such securities can be expected to exercise or convert them at a time when we would, in all likelihood, be able to obtain any needed capital on terms more favorable than those provided by such securities.

Failures or significant downtime of our IT or telecommunications systems could prevent us from taking customer orders, shipping products, billing customers, handling support calls, or communication among our offices. The Internet and individual websites have experienced a number of disruptions and slowdowns, some of which were caused by organized attacks. In addition, some websites have experienced security breakdowns. If we were to experience a security breakdown, disruption or breach that compromised sensitive information, it could harm our relationship with our customers. Our support centers are dependent upon telephone and data services provided by third party telecommunications service vendors and our IT and telecommunications system. Any significant increase in our IT and telecommunications costs or temporary or permanent loss of our IT or telecommunications systems could harm our relationships with our customers. The occurrence of any of these events could have an adverse effect on our operations and financial results.

Certain of our products include the ability for the end user to encrypt data. The United States, through the Bureau of Industry Security, places restrictions on the export of certain encryption technology. These restrictions may include: the requirement to have a license to export the technology; the requirement to have software licenses approved before export is allowed; and outright bans on the licensing of certain encryption technology to particular end users or to all end users in a particular country. Certain of our products are subject to various levels of export restrictions. These export restrictions could negatively impact our business.

Additional risks inherent in our international business activities generally include, among others, longer accounts receivable payment cycles, difficulties in managing international operations, decreased flexibility in matching workforce needs as compared with the U.S., and potentially adverse tax consequences. Such factors could materially adversely affect our future international sales and, consequently, our operating results.

Fluctuations in the value of the U.S. dollar may adversely affect our results of operations. Because our consolidated financial results are reported in U.S. dollars, translation of sales or earnings generated in other currencies into U.S. dollars can result in a significant increase or decrease in the reported amount of those sales or earnings. Significant changes in the value of these foreign currencies relative to the U.S. dollar could have a material adverse effect on our financial condition or results of operations.

Fluctuations in currencies relative to currencies in which our earnings are generated make it more difficult to perform period-to-period comparisons of our reported results of operations. For purposes of accounting, the assets and liabilities of our foreign operations, where the local currency is the functional currency, are translated using period-end exchange rates, and the revenues, expenses and cash flows of our foreign operations are translated using average exchange rates during each period.

In addition to currency translation risks, we incur currency transaction risk whenever we enter into either a purchase or a sales transaction using a currency other than the local currency of the transacting entity. Given the volatility of exchange rates, we cannot be assured we will be able to effectively manage our currency transaction and/or translation risks. Volatility in currency exchange rates may have a material effect on our financial condition or results of operations. Currency exchange rate fluctuations have not, in the past, resulted in a material impact on earnings. However, we may experience at times in the future an impact on earnings as a result of foreign currency exchange rate fluctuations.

In April 2009, we began a program to hedge some of our foreign currency risks. The hedging program will not remove all downside risk and limits the gains we might otherwise receive from currency fluctuations. There can be no assurance that we will be able to enter into future currency hedges on terms acceptable to us. See Note (7) Derivative Financial Instruments to the unaudited condensed consolidated financial statements on our Quarterly Report on Form 10-Q for the three months ended March 31, 2011.

China is becoming a significant market for our products and we are increasing our operations in China. In addition to two joint ventures with the Chinese Academy of Science, we have OEM agreements with several Chinese companies. We also have research and development and sales offices in China employing a total of 54 people as of March 31, 2011. Our operations in China are subject to a number of risks relating to China’s economic and political systems, including:

Our success is dependent upon our proprietary technology. Currently, the IPStor software suite is the core of our proprietary technology. We have fourteen patents issued, and we have multiple pending patent applications, numerous trademarks registered and multiple pending trademark applications related to our products. We cannot predict whether we will receive patents for our pending or future patent applications, and any patents that we own or that are issued to us may be invalidated, circumvented or challenged. In addition, the laws of certain countries in which we sell and manufacture our products, including various countries in Asia, may not protect our products and intellectual property rights to the same extent as the laws of the United States.

We were already subject to one action, which alleged that our technology infringed on patents held by a third party. While we settled this litigation, the fees and expenses of the litigation as well as the litigation settlement were expensive and the litigation diverted management’s time and attention. Any additional litigation, regardless of its outcome, would likely be time consuming and expensive to resolve and would divert management’s time and attention and might subject us to significant liability for damages or invalidate our intellectual property rights. Any potential intellectual property litigation against us could force us to take specific actions, including:

Many of our products are designed to include software or other intellectual property licensed from third parties, including “Open Source” software. At least one intellectual property rights holder has alleged that it holds the rights to software traditionally viewed as Open Source. In addition, United States courts have not interpreted the terms of many open source licenses, and there is a risk that such licenses could be construed in a manner that could impose unanticipated conditions or restrictions on our ability to commercialize our appliances. We could be required to seek licenses from third parties in order to continue offering our software, to re-engineer our software, to discontinue the sale of our software in the event re-engineering cannot be accomplished on a timely basis or to litigate any disputes relating to our use of open source software, any of which could harm our business. There can be no assurance that the necessary licenses would be available on acceptable terms, if at all. The inability to obtain certain licenses or other rights or to obtain such licenses or rights on favorable terms, or the need to engage in litigation regarding these matters, could have a material adverse effect on our business, operating results, and financial condition. Moreover, the inclusion in our products of software or other intellectual property licensed from third parties on a nonexclusive basis could limit our ability to protect our proprietary rights in our products.

Our success depends upon the continued contributions of our key employees, many of whom would be extremely difficult to replace. We do not have key person life insurance on any of our personnel. Worldwide competition for skilled employees in the network storage software industry is extremely intense. If we are unable to retain existing employees or to hire and integrate new employees, our business, financial condition and operating results could suffer. In addition, companies whose employees accept positions with competitors often claim that the competitors have engaged in unfair hiring practices. We may be the subject of such claims in the future as we seek to hire qualified personnel and could incur substantial costs defending ourselves against those claims.

We have made, and may continue to make, acquisitions of other companies or their assets. Integration of the acquired products, technologies and businesses, could divert management’s time and resources. Further, we may not be able to properly integrate the acquired products, technologies or businesses, with our existing products and operations, train, retain and motivate personnel from the acquired businesses, or combine potentially different corporate cultures. If we are unable to fully integrate the acquired products, technologies or businesses, or train, retain and motivate personnel from the acquired businesses, we may not receive the intended benefits of the acquisitions, which could harm our business, operating results and financial condition.

The preparation of consolidated financial statements and related disclosure in accordance with generally accepted accounting principles requires management to establish policies that contain estimates and assumptions that affect the amounts reported in the consolidated financial statements and the accompanying notes. Note 1 to the Consolidated Financial Statements of our 2010 Annual Report on Form 10-K describes the significant accounting policies and estimates essential to preparing our financial statements. The preparation of these financial statements requires us to make estimates and judgments that affect the reported amounts of assets, liabilities, revenues and expenses, and related disclosures. We base our estimates on historical experience and assumptions that we believe to be reasonable under the circumstances. Actual future results may differ materially from these estimates. We evaluate, on an ongoing basis, our estimates and assumptions.

Our present and future equity investments may never appreciate in value, and are subject to normal risks associated with equity investments in businesses. These investments may involve technology risks as well as commercialization risks and market risks. As a result, we may be required to write down some or all of these investments in the future.

The Company is the market leader in disk-based data protection. We deliver proven, comprehensive, data protection solutions that facilitate the continuous availability of business-critical data with speed, integrity, and simplicity. Our open data protection solutions, built upon the award-winning IPStor® virtualization platform, include the industry leading Virtual Tape Library (VTL) with data deduplication for backup optimization, Continuous Data Protector (CDP) for backup, replication, and fast data recovery, Network Storage Server (NSS) for storage virtualization and provisioning, File-interface Deduplication System (FDS) for capacity optimized storage, and the HyperFS® solution, a high-performance SAN-based file system to optimize storage performance for data intensive applications. All of our data protection solutions are enabled with WAN-optimized replication technology for cost-effective disaster recovery and remote office protection. From the Fortune 1000 to small and medium-size businesses, customers across a vast range of industries worldwide have implemented FalconStor solutions in their production IT environments in order to meet their recovery time objectives (RTO) and recovery point objectives (RPO), as well as to manage their storage infrastructures with minimal total cost of ownership (TCO) and with optimal return on investment (ROI).

The shares of Common Stock offered hereby are being registered for the account of the selling stockholders identified in this prospectus. See “Selling Stockholders.” All net proceeds from the sale of the Common Stock will go to the stockholders who offer and sell their shares. We will not receive any part of the proceeds from such sales of Common Stock. We will, however, receive the exercise price of the options at the time of their exercise. Such proceeds will be contributed to working capital and will be used for general corporate purposes.

This Prospectus relates to the reoffer and resale of shares issued or that may be issued to the selling stockholders under our 2006 Incentive Stock Plan, 2007 Outside Directors Equity Compensation Plan, 2000 Stock Option Plan, 2004 Outside Directors Stock Option Plan and 1994 Outside Directors Stock Option Plan, 2010 Outside Directors Equity Compensation Plan and a Stand-Alone Stock Option Agreement between the Company and James P. McNiel.

The following table sets forth (i) the number of shares of Common Stock beneficially owned by each selling stockholder at June 17, 2011, (ii) the number of shares to be offered for resale by each selling stockholder (i.e., the total number of shares underlying options and Restricted Stock awards held by each selling stockholder irrespective of whether such options are presently exercisable or exercisable within sixty days of June 17, 2011), and (iii) the number and percentage of shares of our Common Stock to be held by each selling stockholder after completion of the offering.

Name	Number of shares of Common Stock Beneficially Owned at June 17, 2011 (1)	Number of Shares to be Offered for Resale (2)	Number of shares of Common Stock After Completion of the Offering (3)	Percentage of Class to be Owned After Completion of the Offering
Barry Rubenstein (4)	2,682,038	60,000	2,655,538	5.69%
Eli Oxenhorn (5)	1,122,500	60,000	1,096,000	2.35%
Irwin Lieber (6)	1,904,517	60,000	1,878,017	4.02%
Steven R. Fischer (7)	171,500	155,100	24,900	*
Alan W. Kaufman (8)	126,500	110,100	24,900	*
Seth Horowitz (9)	203,000	207,000	63,000	*
James P. McNiel (10)	263,107	1,910,000	73,107	*
James Weber (11)	355,079	286,940	122,539	*
Bernard Wu (12)	475,904	364,884	215,420	*

(1)

A person is deemed to be the beneficial owner of voting securities that can be acquired by such person within 60 days after June 17, 2011 upon the exercise of options, warrants or convertible securities. Each beneficial owner’s percentage ownership is determined by assuming that options, warrants or convertible securities that are held by such person (but not those held by any other person) and that are currently exercisable (i.e., that are exercisable within 60 days from June 17, 2011) have been exercised. Unless otherwise noted, we believe that all persons named in the table have sole voting and investment power with respect to all shares beneficially owned by them.

(4)

Based upon information contained in a report on Schedule 13D, filed jointly by Barry Rubenstein, Marilyn Rubenstein, Brookwood Partners, L.P. (“Brookwood”), Seneca Ventures (“Seneca”), Woodland Partners (“Woodland Partners”), Woodland Venture Fund (“Woodland Fund”), and Woodland Services Corp. (“Woodland Services”) with the SEC, as well as certain other information. Consists of (i) 706,000 shares of common stock held by Mr. Rubenstein, (ii) 187,900 shares of common stock held by Brookwood, (iii) 131,323 shares of common stock held by Seneca, (iv) 957,257 shares of common stock held by Woodland Partners, (v) 436,800 shares of common stock held by Woodland Venture, (vi) 100,000 shares of common stock held by the Barry Rubenstein Rollover IRA account, (vii) 35,000 shares of common stock held by the Barry Rubenstein IRA account, (viii) 100,000 shares of common stock held in a joint account by Barry Rubenstein and Marilyn Rubenstein, Mr. Rubenstein’s spouse, (ix) 16,500 shares of Common Stock held by Barry Rubenstein issuable upon exercise of options that are currently exercisable or that will be exercisable within 60 days of June 17, 2011, (x) 10,000 shares of restricted stock and (xi) 1,258 shares of common stock held by Marilyn Rubenstein. Mr. Rubenstein disclaims beneficial ownership of the securities held by Brookwood, Seneca, Woodland Partners, Woodland Fund, Woodland Services, and Mr. Rubenstein’s spouse, Marilyn Rubenstein, except to the extent of his respective equity interest therein. Mr. Rubenstein has been a Director of the Company since November 2009.

(5)

Based on information contained in Forms 3 filed by Mr. Oxenhorn and certain other information. Consists of (i) 1,006,000 shares of common stock held by Mr. Oxenhorn, (ii) 90,000 shares of Common Stock held by the Eli Oxenhorn Family Limited Partnership (the “EOFLP”), (iii) 16,500 shares of Common Stock issuable upon exercise of options that are currently exercisable or that will be exercisable within 60 days of June 17, 2011, and (iv) 10,000 shares of restricted stock. Mr. Oxenhorn disclaims beneficial ownership of the securities held by the EOFLP, except to the extent of his respective equity interests therein. Mr. Oxenhorn has been a Director of the Company since November 2009 and Chairman of the Board since September 2010.

(6)

Based on information contained in Forms 3 filed by Mr. Lieber and certain other information. Consists of (i) 1,711,017 shares of common stock held by Mr. Lieber, (ii) 3,000 shares of common stock held in a joint account by Madeline Lieber and Irwin Lieber, Mr. Lieber’s spouse, (iii) 164,000 shares of common stock held by Buckland Focus Fund (“Buckland”) which Mr. Lieber is a General Partner, (iv) 16,500 shares of Common Stock issuable upon exercise of options that are currently exercisable or that will be exercisable within 60 days of June 17, 2011, and (v) 10,000 shares of restricted stock. Mr. Lieber disclaims beneficial ownership of the securities held by Buckland, except to the extent of his respective equity interests therein. Mr. Lieber has been a Director of the Company since November 2009.

(7)

Based on information contained in Forms 4 filed by Mr. Fischer and certain other information. Consists of (i) 24,900 shares of common stock held by Mr. Fisher, (ii) 20,100 shares of restricted stock and (iii) 126,500 shares of common stock issuable upon exercise of options that are currently exercisable or that will be exercisable within 60 days of June 17, 2011. Mr. Fisher has been a Director of the Company since August 2001.

(8)

Based on information contained in Forms 4 filed by Mr. Kaufman and certain other information. Consists of (i) 24,900 shares of common stock held by Mr. Kaufman, (ii) 20,100 shares of restricted stock and (iii) 81,500 shares of common stock issuable upon exercise of options that are currently exercisable or that will be exercisable within 60 days of June 17, 2011. Mr. Kaufman has been a Director of the Company since May 2005.

(9)

Based on information contained in Forms 4 filed by Mr. Horowitz and certain other information. Consists of (i) 63,000 shares of common stock held by Mr. Horowitz, (ii) 17,000 shares of restricted stock and (iii) 123,000 shares of common stock issuable upon exercise of options that are currently exercisable or that will be exercisable within 60 days of June 17, 2011. Mr. Horowitz has served as Vice President, General Counsel and Secretary of the Company since January 2003.

(10)

Based on information contained in Forms 4 filed by Mr. McNiel and certain other information. Consists of (i) 73,107 shares of common stock held by Mr. McNiel, (ii) 90,000 shares of restricted stock and (iii) 100,000 shares of common stock issuable upon exercise of options that are currently exercisable or that will be exercisable within 60 days of June 17, 2011. Mr. McNiel has been President and Chief Executive Officer of the Company since January 11, 2011. From September 28, 2010 to January 11, 2011, Mr. McNiel was Interim President and Interim Chief Executive Officer of the Company. From December 2009 to September 2010, Mr. McNiel was a Vice President and Chief Strategy Officer of the Company.

(11)

Based on information contained in Forms 4 filed by Mr. Weber and certain other information. Consists of (i) 122,539 shares of common stock held by Mr. Weber, (ii) 30,600 shares of restricted stock and (iii) 201,940 shares of common stock issuable upon exercise of options that are currently exercisable or that will be exercisable within 60 days of June 17, 2011. Mr. Weber has served as Chief Financial Officer, Treasurer and a Vice President since February 2004 and as Vice President of Operations since May 2011.

(12)

Based on information contained in Forms 4 filed by Mr. Wu and certain other information. Consists of (i) 215,420 shares of common stock held by Mr. Wu, (ii) 30,600 shares of restricted stock and (iii) 229,884 shares of common stock issuable upon exercise of options that are currently exercisable or that will be exercisable within 60 days of June 17, 2011. Mr. Wu has served as Vice President of Business Development of the Company and its predecessor entity since November 2000.

This offering is self-underwritten; neither we nor the selling stockholders have employed an underwriter for the sale of Common Stock by the selling stockholders. We will bear all expenses in connection with the preparation of this Prospectus. The selling stockholders will bear all expenses associated with the sale of the Common Stock.

The selling stockholders may effect such transactions by selling shares to or through broker-dealers, and all such broker-dealers may receive compensation in the form of discounts, concessions, or commissions from the selling stockholders and/or the purchasers of shares of Common Stock for whom such broker-dealers may act as agents or to whom they sell as principals, or both (which compensation as to a particular broker-dealer might be in excess of customary commissions).

Any broker-dealer acquiring Common Stock from the selling stockholders may sell the shares either directly, in its normal market-making activities, through or to other brokers on a principal or agency basis or to its customers. Any such sales may be at prices then prevailing on the Nasdaq Global Market or at prices related to such prevailing market prices or at negotiated prices to its customers or a combination of such methods. The selling stockholders and any broker-dealers that act in connection with the sale of the Common Stock hereunder might be deemed to be “underwriters” within the meaning of Section 2(11) of the Securities Act; any commissions received by them and any profit on the resale of shares as principal might be deemed to be underwriting discounts and commissions under the Securities Act. Any such commissions, as well as other expenses incurred by the selling stockholders and applicable transfer taxes, are payable by the selling stockholders.

We have not registered or qualified offers and sales of shares of the Common Stock under the laws of any country, other than the United States. To comply with certain states’ securities laws, if applicable, the selling stockholders will offer and sell their shares of Common Stock in such jurisdictions only through registered or licensed brokers or dealers. In addition, in certain states the selling stockholders may not offer or sell shares of Common Stock unless we have registered or qualified such shares for sale in such states or we have complied with an available exemption from registration or qualification.

The selling shareholders have represented to us that any purchase or sale of shares of Common Stock by them will comply with Regulation M promulgated under the Securities Exchange Act of 1934, as amended. In general, Rule 102 under Regulation M prohibits any person connected with a distribution of our Common Stock (a “Distribution”) from directly or indirectly bidding for, or purchasing for any account in which he or she has a beneficial interest, any of our Common Stock or any right to purchase our Common Stock, for a period of one business day before and after completion of his or her participation in the distribution (we refer to that time period as the “Distribution Period”).

During the Distribution Period, Rule 104 under Regulation M prohibits the selling shareholders and any other persons engaged in the Distribution from engaging in any stabilizing bid or purchasing our Common Stock except for the purpose of preventing or retarding a decline in the open market price of our Common Stock. No such person may effect any stabilizing transaction to facilitate any offering at the market. Inasmuch as the selling shareholders will be reoffering and reselling our Common Stock at the market, Rule 104 prohibits them from effecting any stabilizing transaction in contravention of Rule 104 with respect to our Common Stock.

The consolidated financial statements of FalconStor Software, Inc. and subsidiaries as of December 31, 2010, and 2009, and the related consolidated statements of operations, stockholders’ equity and comprehensive income (loss), and cash flows for each of the years in the three-year period ended December 31, 2010, and management’s assessment of the effectiveness of internal control over financial reporting as of December 31, 2010, have been incorporated by reference in this Prospectus and in the registration statement in reliance upon the reports of KPMG LLP, independent registered public accounting firm, incorporated by reference herein, and upon the authority of said firm as experts in auditing and accounting.

We have filed with the SEC four Registration Statements on Form S-8 under the Securities Act with respect to the Shares offered hereby. For further information with respect to the Company and the securities offered hereby, reference is made to the Registration Statements. Statements contained in this Prospectus as to the contents of any contract or other document are not necessarily complete, and in each instance, reference is made to the copy of such contract or document filed as an exhibit to the Registration Statements, each such statement being qualified in all respects by such reference.

Insofar as indemnification for liabilities arising under the Securities Act may be permitted to directors, officers or persons controlling the Company, the Company has been advised that it is the SEC’s opinion that such indemnification is against public policy as expressed in the Securities Act and is, therefore, unenforceable.

As permitted by the Delaware General Corporation Law (“DGCL”), the Company’s Certificate of Incorporation, as amended, limits the personal liability of a director or officer to the Company for monetary damages for breach of fiduciary duty of care as a director. Liability is not eliminated for (i) any breach of the director’s duty of loyalty to the Company or its stockholders, (ii) acts or omissions not in good faith or which involve intentional misconduct or a knowing violation of law, (iii) unlawful payment of dividends or stock purchase or redemptions pursuant to Section 174 of the DGCL, or (iv) any transaction from which the director derived an improper personal benefit.

The Company is subject to Section 203 of the DGCL, which prevents an “interested stockholder” (defined in Section 203, generally, as a person owning 15% or more of a corporation’s outstanding voting stock) from engaging in a “business combination” with a publicly-held Delaware corporation for three years following the date such person became an interested stockholder, unless: (i) before such person became an interested stockholder, the board of directors of the corporation approved the transaction in which the interested stockholder became an interested stockholder or approved the business combination; (ii) upon consummation of the transaction that resulted in the interested stockholder’s becoming an interested stockholder, the interested stockholder owns at least 85% of the voting stock of the corporation outstanding at the time the transaction commenced (subject to certain exceptions), or (iii) following the transaction in which such person became an interested stockholder, the business combination is approved by the board of directors of the corporation and authorized at a meeting of stockholders by the affirmative vote of the holders of 66% of the outstanding voting stock of the corporation not owned by the interested stockholder. A “business combination” includes mergers, stock or asset sales and other transactions resulting in a financial benefit to the interested stockholder.

FalconStor Software, Inc. maintains directors and officers insurance and company reimbursement policy. The policy insures directors and officers against unindemnified loss arising from certain wrongful acts in their capacities and reimburses FalconStor Software, Inc. for such loss for which FalconStor Software, Inc. has lawfully indemnified the directors and officers. The policy contains various exclusions, none of which relate to the offering hereunder. FalconStor Software, Inc. also has agreements with its directors and officers providing for the indemnification thereof under certain circumstances.

4.1	Stand-Alone Stock Option Agreement dated January 11, 2011, by and between FalconStor Software, Inc., and James P. McNiel, incorporated herein by reference to Exhibit 10.2 to the Company’s Current Report on Form 8-K, dated January 11, 2011.

4.2	2010 Outside Directors Equity Compensation Plan, incorporated by reference to the Company’s quarterly report on Form 10-Q for the quarter ended March 31, 2010, filed on May 7, 2010.

*5.1	Opinion of Olshan Grundman Frome Rosenzweig & Wolosky LLP as to the legality of the stock covered by this registration statement.

*23.1	Consent of KPMG LLP, independent registered public accounting firm.

*23.2	Consent of Olshan Grundman Frome Rosenzweig & Wolosky LLP (included in exhibit 5.1).

24.1	Powers of Attorney, included on the signature page to this Registration Statement.

provided, however, that paragraphs (i) and (ii) above do not apply if the information required to be included in a post-effective amendment by those paragraphs is contained in periodic reports filed by the registrant pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 that are incorporated by reference in the Registration Statement;

(2)

That, for the purposes of determining any liability under the Securities Act of 1933, each such post-effective amendment shall be deemed to be a new registration statement relating to the securities offered therein, and the offering of such securities at that time shall be deemed to be the initial bona fide offering thereof; and

B. The undersigned registrant hereby undertakes that, for purposes of determining any liability under the Securities Act of 1933, each filing of the registrant’s annual report pursuant to Section 13(a) or 15(d) of the Securities Exchange Act of 1934 (and, where applicable, each filing of an employee benefit plan’s annual report pursuant to Section 15(d) of the Securities Exchange Act of 1934) that is incorporated by reference in this Registration Statement shall be deemed to be a new registration statement relating to the securities offered therein, and the offering of such securities at that time shall be deemed to be the initial bona fide offering thereof.

C. Insofar as indemnification for liabilities arising under the Securities Act of 1933 may be permitted to directors, officers and controlling persons of the registrant pursuant to the foregoing provisions, or otherwise, the registrant has been advised that in the opinion of the Securities and Exchange Commission such indemnification is against public policy as expressed in the Securities Act of 1933 and is, therefore, unenforceable. In the event that a claim for indemnification against such liabilities (other than the payment by the registrant of expenses incurred or paid by a director, officer or controlling person of the registrant in the successful defense of any action, suit or proceeding) is asserted by such director, officer or controlling person in connection with the securities being registered, the registrant will, unless in the opinion of its counsel the matter has been settled by a controlling precedent, submit to a court of appropriate jurisdiction the question whether such indemnification by it is against public policy as expressed in the Securities Act of 1933 and will be governed by the final adjudication of such issue.

In accordance with the requirements of the Securities Act of 1933, the Registrant certifies that it has reasonable grounds to believe that it meets all of the requirements of filing on Form S-8 and authorizes this Registration Statement to be signed on its behalf by the undersigned, thereunto duly authorized, in the Town of Melville, State of New York, on the 28th day of June, 2011.

KNOW ALL MEN BY THESE PRESENTS, that each person whose signature appears below constitutes and appoints each of James P. McNiel and James Weber his true and lawful attorneys-in-fact and agent, with full power of substitution and resubstitution, for and in his or her name, place and stead, in any and all capacities, to sign any or all amendments to this Registration Statement, and to file the same, with all exhibits thereto, and other documents in connection therewith, with the Securities and Exchange Commission, granting unto said attorney-in-fact and agent, full power and authority to do and perform each and every act and thing requisite necessary to be done in and about the premises, as fully to all intents and purposes as he or she might or could do in person, hereby ratifying and confirming all that said attorney-in-fact and agent, or his or her substitute, may lawfully do or cause to be done by virtue hereof.

Signature	Title	Date

/s/ James P. McNiel	President, Chief Executive Officer and Director (Principal Executive Officer)	June 28, 2011
James P. McNiel		June 28, 2011

/s/ James Weber	Chief Financial Officer, Vice President of Operations and Treasurer (Principal Financial Officer and Principal Accounting Officer)	June 28, 2011
James Weber		June 28, 2011

/s/ Irwin Lieber	Director	June 28, 2011
Irwin Lieber	Director	June 28, 2011

/s/ Steven R. Fischer	Director	June 28, 2011
Steven R. Fischer	Director	June 28, 2011

/s/ Eli Oxenhorn	Chairman of the Board	June 28, 2011
Eli Oxenhorn	Chairman of the Board	June 28, 2011

/s/ Barry Rubenstein	Director	June 28, 2011
Barry Rubenstein	Director	June 28, 2011

/s/ Alan W. Kaufman	Director	June 28, 2011
Alan W. Kaufman	Director	June 28, 2011

Table of Contents

4.1	Stand-Alone Stock Option Agreement dated January 11, 2011, by and between FalconStor Software, Inc., and James P. McNiel, incorporated herein by reference to Exhibit 10.2 to the Company’s Current Report on Form 8-K, dated January 11, 2011.

4.2	2010 Outside Directors Equity Compensation Plan, incorporated by reference to the Company’s quarterly report on Form 10-Q for the quarter ended March 31, 2010, filed on May 7, 2010.

*5.1	Opinion of Olshan Grundman Frome Rosenzweig & Wolosky LLP as to the legality of the stock covered by this registration statement.

*23.1	Consent of KPMG LLP, independent registered public accounting firm.

*23.2	Consent of Olshan Grundman Frome Rosenzweig & Wolosky LLP (included in exhibit 5.1).

24.1	Powers of Attorney, included on the signature page to this Registration Statement.

____________

Delaware (State or other jurisdiction of incorporation or organization)		77-0216135 (I.R.S. Employer Identification No.)

2 Huntington Quadrangle Suite 2S01 Melville, New York (Address of principal executive offices)		11747 (Zip Code)

PART I INFORMATION REQUIRED IN THE SECTION 10(a) PROSPECTUS	iii

WHERE YOU CAN FIND MORE INFORMATION	3

INCORPORATION BY REFERENCE	3

ABOUT THIS PROSPECTUS	4

RISK FACTORS	5

THE COMPANY	24

USE OF PROCEEDS	25

SELLING STOCKHOLDERS	25

PLAN OF DISTRIBUTION	28

LEGAL MATTERS	30

EXPERTS	30

ADDITIONAL INFORMATION	30

DISCLOSURE OF COMMISSION POSITION ON INDEMNIFICATION FOR SECURITIES ACT LIABILITIES	31

PART II INFORMATION REQUIRED IN THE REGISTRATION STATEMENT	II-1

	FALCONSTOR SOFTWARE, INC.
	(Registrant)


	By:	/s/ James P. McNiel
		James P. McNiel President and Chief Executive Officer