Microsoft Corp. today announced revenue of $13.76 billion for the quarter ended September 30, 2007, a 27% increase over the same period of the prior year. Operating income, net income and diluted earnings per share for the quarter were $5.92 billion, $4.29 billion and $0.45, respectively.

�This fiscal year is off to an outstanding start with the fastest revenue growth of any first quarter since 1999,� said Chris Liddell, chief financial officer at Microsoft. �Operating income growth of over 30% also reflects our ability to translate revenue into profits while making strategic investments for the future.�

Microsoft�s businesses of Client, Microsoft Business Division, and Server and Tools grew combined revenue in excess of 20%, and experienced robust demand for Windows Vista, the 2007 Microsoft Office system, Windows Server, and SQL Server.

�Customer demand for Windows Vista this quarter continued to build with double-digit growth in multi-year agreements by businesses and with the vast majority of consumers purchasing premium editions,� said Kevin Johnson, president of the Platform and Services Division at Microsoft.

During the quarter, Microsoft�s two consumer focused divisions passed milestones with the successful close of the company�s largest ever acquisition, aQuantive, and Halo 3 achieving the biggest entertainment launch day in history.

�Backed by an amazing product line-up, our sales force, marketing teams, and partners delivered another excellent quarter,� said Kevin Turner, chief operating officer at Microsoft.