Microsoft Preps for Big Non-Yahoo Announcement

Microsoft is preparing to make what it calls a "significant company announcement" on Thursday morning. The press conference -- which Microsoft made sure to point out does not involve Yahoo acquisition information -- will include CEO Steve Ballmer, chief software architect Ray Ozzie, senior vice president of the Server and Tools Business Bob Muglia, and senior vice president and general counsel Brad Smith.

Several prior big announcements from Microsoft have been less than spectacular, including the Zune launch, the UMPC launch, and the Windows Vista launch.

The Redmond-based company isnit saying yet what will be discussed during the announcement.