Microsoft beat Wall Street's estimates for its most recent quarter results despite sluggish demand for business PCs during the period.
The software giant also warned it was "guarded" about future growth.
Revenue increased 23 per cent to $5.66bn for its fiscal third quarter ended 31 March. Net income also grew 23 per cent to $2.39bn, or earnings per share of 43 cents, compared with last year's profit of $1.91bn, or 35 cents a share.
Analysts surveyed by First Call has expected earnings per share of 41 cents.
John Connors, Microsoft chief financial officer, said: "OEM revenue was light as demand for business PCs remained slow in the quarter, and we remain guarded about near term growth."
But he added that PC demand appeared to pick up late in the quarter.
Officials also claimed the company has shifted one and a half million copies of Windows 2000 since it was launched on 17 February.
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