Microsoft Corp. today announced third-quarter revenue of $16.43 billion for the quarter ended Mar. 31, 2011, a 13% increase from the same period of the prior year. Operating income, net income, and diluted earnings per share for the quarter were $5.71 billion, $5.23 billion, and $0.61 per share, which represented increases of 10%, 31%, and 36%, respectively, when compared with the prior year period.