Microsoft Corp. (NASDAQ: MSFT: 27.17, 1.12) said Thursday that its fiscal first-quarter net income jumped 51%, helped by solid enterprise growth and continued strong consumer demand for Office 2010, Windows 7, and Xbox 360 consoles and games. Net income rose to $5.4 billion, or 62 cents a share, from $3.6 billion, or 40 cents a share, in the year-ago quarter. Revenue climbed 25% to $16.2 billion from $12.92 billion in the same quarter last year. Analysts, on average, expected the company to report earnings of 55 cents per share on revenue of $15.81 billion. Microsoft shares rallied more than 3% in late trading.