Microsoft said its net profit for the three months ended March 31 fell to $4.39 billion, or 47 cents per share, from $4.93 billion, or 50 cents per share, in the same period last year.
The results still beat Wall Street's expectations. Analysts surveyed by Thomson Financial forecast a profit of 44 cents per share.
But investors, chewing over the company's guidance and a drop in sales in the division that produces the flagship