UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, DC 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of

the Securities Exchange Act of 1934

April 27, 2006

Date of Report (date of earliest event reported)

ADVENT SOFTWARE, INC.

(Exact name of Registrant as specified in its charter)

State of Delaware	0-26994	94-2901952
(State or other jurisdiction of incorporation or organization)	(Commission File Number)	(I.R.S. Employer Identification Number)

301 Brannan Street

San Francisco, California 94107

(Address of principal executive offices)

(415) 543-7696

(Registrant’s telephone number, including area code)

(Former name or former address, if changed since last report)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

o Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

o Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

o Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

o Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

TABLE OF CONTENTS

EXHIBIT 99.1

ITEM 2.02 Results of Operations and Financial Condition

                On April 27, 2006, Advent Software, Inc. (the “Company”) announced its results of operations for the first quarter ended March 31, 2006. A copy of the Company’s press release announcing such results dated April 27, 2006 is attached hereto as Exhibit 99.1. This Current Report on Form 8-K and the attached exhibit are furnished to, but not filed with, the Securities Exchange Commission (“SEC”) and shall not be deemed to be incorporated by reference into any of the Company’s filings with the SEC under the Securities Act of 1933, as amended, or the Exchange Act of 1934, as amended.

ITEM 9.01 Financial Statements and Exhibits

                (d) Exhibits

                The following exhibit is furnished as part of this Current Report on Form 8-K.

Exhibit No.	Exhibit Description
99.1	Press release dated April 27, 2006.

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SIGNATURES

                Pursuant to the requirements of the Securities Exchange Act of 1934, the Registrant has duly caused this Report to be signed on its behalf by the undersigned, thereunto duly authorized.

ADVENT SOFTWARE, INC.
By:	/s/ Graham V. Smith
	Graham V. Smith  Executive Vice President,  Chief Financial Officer and Secretary  (Principal Financial and Accounting Officer)

Dated: April 27, 2006

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EXHIBIT INDEX

Exhibit No.	Exhibit Description
99.1	Press release dated April 27, 2006.

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