Wind River Systems 10-Q 2005 Q3 Quarterly report

EXHIBIT 32.1

CERTIFICATION OF

CHIEF EXECUTIVE OFFICER

PURSUANT TO

18 U.S.C. SECTION 1350,

AS ADOPTED PURSUANT TO

SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the Quarterly Report of Wind River Systems, Inc. (the “Company”) on Form 10-Q for the period ended October 31, 2004 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, Kenneth R. Klein, as Chairman of the Board, President and Chief Executive Officer of the Company, certify, pursuant to 18 U.S.C. § 1350, as adopted pursuant to § 906 of the Sarbanes-Oxley Act of 2002, that:

(1) The Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934, as amended; and

(2) The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

Date: December10, 2004	By:	/s/ Kenneth R. Klein
		Kenneth R. Klein
		Chairman of the Board, President and Chief
		Executive Officer