The news may seem bleak for Microsoft these days, what with Windows 8 sales disappointing, and the PC market itself sliding.
But don't tell Wall Street. Microsoft shares closed Tuesday at $33.10, their highest level in more than five years.

Microsoft shares have been moribund for the better part of the last decade. Investors have come to view the company, once the most valued stock in the world, as one with limited growth opportunity, particularly as rivals Apple and Google race ahead in key consumer markets.