Microsoft Announces Debt Offering

Offering is part of $6 billion debt authorization by board of directors in
September 2008.

REDMOND, Wash., May 11 /PRNewswire-FirstCall/ -- Microsoft Corp. today
announced the pricing of its offering of $3.75 billion of senior unsecured
notes. The notes consist of the following tranches:
-- $2 billion of 2.95 percent notes due June 1, 2014
-- $1 billion of 4.20 percent notes due June 1, 2019

-- $750 million of 5.20 percent notes due June 1, 2039

(Logo: http://www.newscom.com/cgi-bin/prnh/20000822/MSFTLOGO)

Microsoft intends to use the net proceeds from the offering for general
corporate purposes, which may include funding for working capital, capital
expenditures, repurchases of stock and acquisitions. The offering is expected
to close on May 18, 2009.

A copy of the prospectus relating to the offering is available from J.P.
Morgan Securities Inc., Morgan Stanley & Co. Inc. or any of the other
underwriters of the offering.

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

SOURCE Microsoft Corp.

financial analysts and investors only, Investor Relations of Microsoft,
+1-425-706-3703; or press, Rapid Response Team of Waggener Edstrom Worldwide,
+1-503-443-7070, rrt@waggeneredstrom.com, for Microsoft Corp.