Software maker says those developing software for Windows Phone 7 Series devices will do so using either Silverlight or XNA.

Microsoft executive Kirill Tatarinov got caught watching a hockey game during an important team meeting.

While problems and controversy have found the games elsewhere, it's been smooth sailing inside the main technology center.

An optional update closes more than 70 "activation hacks" used to thwart the product's software protection mechanisms.

The software maker says that an error message warning users that their batteries may need replacing appears to be working as intended, despite some complaints.

The software maker says that after April 15 it will no longer allow online play of games for the original Xbox.

The popular new operating system accounts for 1 in 10 computers accessing the Web, according to Net Applications.

The software maker says there is a problem that is causing some users to erroneously see a warning about their battery needing replacement.

Like a modern-day CueCat, Microsoft's Tag technology uses a cell phone camera to read bar codes linking printed materials to online content.

CNET's Ina Fried tries to cut through the jargon and explain just what is new in this three-year, $250 million deal.

The Xbox 360 add-on is aimed for a holiday release, as had been expected.

Microsoft says it has gotten only about half as many calls with Windows 7 as it had anticipated.

CNET's Ina Fried got a chance to play with the dual-screen e-reader, which combines a 10-inch electronic ink display with a second color LCD touch...

The software maker says it is still investigating allegations that MSN China's Juku microblogging site improperly uses code from a rival service.

A massive outage left many T-Mobile USA customers unable to make calls or get data on their cellular phones on Tuesday.