SUB-INVESTMENT ADVISORY AGREEMENT

THE DREYFUS CORPORATION

200 Park Avenue

New York, New York 10166

October 16, 2008

Mellon Capital Management Corporation

50 Fremont Street

Suite 3900

San Francisco, California 94105

Ladies and Gentlemen:

As you are aware, Dreyfus Premier Opportunity Funds (the “Fund”) desires to employ the capital of the series named on Schedule 1 hereto, as such Schedule may be revised from time to time (each, a “Series”), by investing and reinvesting the same in investments of the type and in accordance with the limitations specified in the Series’ Prospectus and Statement of Additional Information as from time to time in effect, copies of which have been or will be submitted to you, and in such manner and to such extent as from time to time may be approved by the Fund’s Board. The Fund employs The Dreyfus Corporation (the “Adviser”) to act as its investment adviser pursuant to a written agreement (the “Management Agreement”), a copy of which has been furnished to you. The Adviser desires to retain you, and you hereby agree to accept such retention, as the Series’ sub-investment adviser.

In connection with your serving as sub-investment adviser to the Fund, it is understood that from time to time you will employ or associate with yourself such person or persons as you may believe to be particularly fitted to assist you in the performance of this Agreement. Such person or persons may be officers or employees of both you and the Fund. The compensation of such person or persons shall be paid by you and no obligation may be incurred on the Fund’s behalf in any such respect.

Subject to the supervision and approval of the Adviser and the Fund’s Board, you will provide investment management of the Series’ portfolio in accordance with the Series’ investment objective(s), policies and limitations as stated in the Series’ Prospectus and Statement of Additional Information as from time to time in effect. In connection therewith, you will supervise the Series’ investments and conduct a continuous program of investment, evaluation and, if appropriate, sale and reinvestment of the Series’ assets. You will furnish to the Adviser or the Fund such information, with respect to the investments which the Series may hold or contemplate purchasing, as the Adviser or the Fund may reasonably request. The Fund and the Adviser wish to be informed of important developments materially affecting the Series’ portfolio and shall expect you, on your own initiative, to furnish to the Fund or the Adviser from time to time such information as you may believe appropriate for this purpose. The Adviser shall furnish you with copies of the Series’ Prospectuses, Statements of Additional Information and shareholder reports. You shall have no responsibility with respect to the collection of income, physical acquisition or the safekeeping of the Series’ assets.

You shall exercise your best judgment in rendering the services to be provided hereunder, and the Adviser agrees as an inducement to your undertaking the same that you shall not be liable hereunder for any error of judgment or mistake of law or for any loss suffered by the Series or the Adviser, provided that nothing herein shall be deemed to protect or purport to protect you against any liability to the Adviser, the Fund or a Series’ security holders to which you would otherwise be subject by reason of willful misfeasance, bad faith or gross negligence in the performance of your duties hereunder, or by reason of your reckless disregard of your obligations and duties hereunder. The Fund is expressly made a third party beneficiary of this Agreement with rights as respect to the Series to the same extent as if it had been a party hereto.

In consideration of services rendered pursuant to this Agreement, the Adviser will pay you on the first business day of each month a fee at the annual rate set forth on Schedule 1 hereto. If the Adviser waives all or a portion of the management fee it is entitled to receive from the Series, the fee payable to you pursuant to this Agreement may be reduced as you and the Adviser mutually agree.

Net asset value shall be computed on such days and at such time or times as described in the Series’ then-current Prospectus and Statement of Additional Information. The fee for the period from the date of the commencement of the public sale of the Series’ shares to the end of the month during which such sale shall have been commenced shall be pro-rated according to the proportion which such period bears to the full monthly period, and upon any termination of this Agreement before the end of any month, the fee for such part of a month shall be pro-rated according to the proportion which such period bears to the full monthly period and shall be payable within 10 business days of the date of termination of this Agreement.

For the purpose of determining fees payable to you, the value of the Series’ net assets shall be computed in the manner specified in the Fund’s charter documents for the computation of the value of the Series’ net assets.

You will bear all expenses in connection with the performance of your services under this Agreement. All other expenses to be incurred in the operation of the Series (other than those borne by the Adviser) will be borne by the Fund, except to the extent specifically assumed by you. The expenses to be borne by the Fund include, without limitation, the following: taxes, interest, loan commitment fees, interest and distributions paid on securities sold short, brokerage fees and commissions, if any, fees of Board members who are not officers, directors, employees or holders of 5% or more of the outstanding voting securities of you or the Adviser or any affiliate of you or the Adviser, Securities and Exchange Commission fees and state Blue Sky qualification fees, advisory fees, charges of custodians, transfer and dividend disbursing agents’ fees, certain insurance premiums, industry association fees, outside auditing and legal expenses, costs of independent pricing services, costs of maintaining the Fund’s existence, costs attributable to investor services (including, without limitation, telephone and personnel expenses), costs of preparing and printing prospectuses and statements of additional information for regulatory purposes and for distribution to existing stockholders, costs of stockholders’ reports and meetings, and any extraordinary expenses.

The Adviser understands that in entering into this Agreement you have relied upon the inducements made by the Fund to you under the Management Agreement. The Adviser also understands that you now act, and that from time to time hereafter you may act, as investment adviser or sub-investment adviser to one or more investment companies and fiduciary or other managed accounts, and the Adviser has no objection to your so acting, provided that when the purchase or sale of securities of the same issuer is suitable for the investment objectives of two or more companies or accounts managed by you which have available funds for investment, the available securities will be allocated in a manner believed by you to be equitable to each company or account. It is recognized that in some cases this procedure may adversely affect the price paid or received by a Series or the size of the position obtainable for or disposed of by the Series. It is also understood that you and the Adviser or any other sub-adviser to the Fund shall be prohibited from consulting with each other concerning transactions described in Rule 12d3-1(c) under the Investment Company Act of 1940, as amended, and that your responsibility regarding investment advice hereunder is limited to the Series.

In addition, it is understood that the persons employed by you to assist in the performance of your duties hereunder will not devote their full time to such services and nothing contained herein shall be deemed to limit or restrict your right or the right of any of your affiliates to engage in and devote time and attention to other businesses or to render services of whatever kind or nature.

You shall not be liable for any error of judgment or mistake of law or for any loss suffered by the Series or the Adviser in connection with the matters to which this Agreement relates, except for a loss resulting from willful misfeasance, bad faith or gross negligence on your part in the performance of your duties or from reckless disregard by you of your obligations and duties under this Agreement. Any person, even though also your officer, director, partner, employee or agent, who may be or become an officer, Board member, employee or agent of the Fund, shall be deemed, when rendering services to the Fund or acting on any business of the Fund, to be rendering such services to or acting solely for the Fund and not as your officer, director, partner, employee, or agent or one under your control or direction even though paid by you.

As to each Series, this Agreement shall continue until the date set forth opposite such Series’ name on Schedule 1 hereto (the “Reapproval Date”), and thereafter shall continue automatically for successive annual periods ending on the day of each year set forth opposite the Series’ name on Schedule 1 hereto (the “Reapproval Day”), provided such continuance is specifically approved at least annually by (i) the Fund’s Board or (ii) vote of a majority (as defined in the Investment Company Act of 1940, as amended) of such Series’ outstanding voting securities, provided that in either event its continuance also is approved by a majority of the Fund’s Board members who are not “interested persons” (as defined in said Act) of any party to this Agreement, by vote cast in person at a meeting called for the purpose of voting on such approval. As to each Series, this Agreement is terminable without penalty (i) by the Adviser upon 60 days’ notice to you, (ii) by the Fund’s Board or by vote of the holders of a majority of such Series’ shares upon 60 days’ notice to you, or (iii) by you upon not less than 90 days’ notice to the Fund and the Adviser. This Agreement also will terminate automatically, as to the relevant Series, in the event of its assignment (as defined in said Act or the Investment Advisers Act of 1940). In addition, notwithstanding anything herein to the contrary, if the Management Agreement terminates for any reason, this Agreement shall terminate effective upon the date the Management Agreement terminates.

The Adviser acknowledges receipt of Part II of your Form ADV at least 48 hours prior to entering into this Agreement, as required by Rule 204-3 under the Investment Advisers Act of 1940. No provision of this Agreement may be changed, waived or discharged unless signed in writing by the parties hereto. This Agreement shall be governed by the laws of the State of New York, without regard to the conflict of principle laws thereof. This Agreement may be executed in several counterparts, including via facsimile, each of which shall be deemed an original for all purposes, including judicial proof of the terms hereof, and all of which together shall constitute and be deemed one and the same agreement. If any one or more of the provisions of this Agreement shall be held contrary to express law or against public policy, or shall for any reason whatsoever be held invalid, then such provisions shall be deemed severable from the remainder of this Agreement and shall in no way affect the validity or enforceability of the other provisions of this Agreement.

Unless otherwise provided herein or agreed to in writing by the parties, all notices, instructions or advice permitted or required under this Agreement shall be deemed to have been properly given if sent by regular first-class mail, registered mail, private courier or facsimile and addressed to (or delivered to) the respective party at the address set forth above or at such other address or addresses as shall be specified, in each case, in a notice similarly given. Each party may rely upon any notice from the other party or other communication reasonably believed by the receiving party to be genuine.

If the foregoing is in accordance with your understanding, will you kindly so indicate by signing and returning to us the enclosed copy hereof.

Very truly yours,

THE DREYFUS CORPORATION

By:

Accepted:

MELLON CAPITAL MANAGEMENT CORPORATION

By:

SCHEDULE 1

Name of Series	Annual Fee as a Percentage of Average Daily      Net Assets	Reapproval Date	Reapproval Day
Dreyfus Global Sustainability Fund	0.23%	August 31, 2010	August 31st