REDMOND, Wash. — December 10, 2008— Microsoft Corp. today announced that its board of directors declared a quarterly dividend of $0.13 per share. The dividend is payable March 12, 2009 to shareholders of record on February 19, 2009. The ex-dividend date will be February 17, 2009.

Founded in 1975, Microsoft (Nasdaq “MSFT”) is the worldwide leader in software, services and solutions that help people and businesses realize their full potential.

For more information, financial analysts and investors only:

Bill Koefoed, general manager, Investor Relations, Microsoft, (425) 706-3703

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