Microsoft Corp. today announced quarterly revenue of $20.89 billion for the quarter ended Dec. 31, 2011, a 5% increase from the prior year period. Operating income, net income, and diluted earnings per share for the quarter were $7.99 billion, $6.62 billion, and $0.78 per share, compared with $8.17 billion, $6.63 billion and $0.77 per share, respectively, in the prior year period. Prior year results include recognition of $224 million of deferred revenue related to the Office 2010 technology guarantee program. "We delivered solid financial results, even as we prepare for a launch year that will accelerate many of our key products and services," said Steve Ballmer, chief executive officer at Microsoft. "Coming out of the Consumer Electronics Show, we're seeing very positive reviews for our new phones and PCs, and a strong response to our new Metro style design that will unify consumer experiences across our phones, PCs, tablets, and television in 2012." The Microsoft Business Division reported $6.28 billion in second quarter revenue, a 3% increase from the prior year period, and a 7% increase excluding the prior year recognition of deferred revenue for the Office 2010 technology guarantee program. Nearly 200 million licenses of Office 2010 have been sold in the 18 months since launch. Revenue from Exchange and SharePoint grew by 10% or more over the prior year period, and revenue from Lync and Dynamics CRM grew by more than 30%. The Server & Tools business posted $4.77 billion in second quarter revenue, an 11% increase from the prior year period, reflecting double-digit revenue growth in Windows Server and SQL Server premium editions and more than 20% growth in System Center revenue. "We saw strong demand for our business products and services, despite the soft PC market and continuing economic uncertainty in key parts of the world," said Peter Klein, chief financial officer at Microsoft. "We delivered record earnings per share by continuing to manage our costs while investing for future growth." The Windows and Windows Live Division posted revenue of $4.74 billion, a 6% decline from the prior period. Microsoft has sold over 525 million Windows 7 licenses since launch. The Online Services Division reported revenue of $784 million, a 10% increase from the prior year period. Bing organic US market share grew to 15.1% while Bing-powered US market share, including Yahoo! properties, was approximately 27%. The Entertainment & Devices Division posted revenue of $4.24 billion, an increase of 15% from the prior period. The Xbox 360 installed base now totals approximately 66 million consoles and 18 million Kinect sensors. Xbox LIVE now has 40 million members worldwide, an increase of 33% from the prior year period. "In addition to the continued strength of our commercial business, this holiday season was the strongest in Microsoft history, thanks to good sales execution and compelling products like Xbox 360 and Kinect," said Kevin Turner, chief operating officer at Microsoft. "We are seeing a lot of excitement for new devices, from Windows 7 Ultrabooks to new Windows Phones, as well as growing anticipation for Windows 8." Microsoft is revising operating expense guidance downward to $28.5 billion to $28.9 billion for the full year ending June 30, 2012.