NEW YORK - NOVEMBER 30: Microsoft Chairman Steve Ballmer speaks during a presentation introducing the availability of the Windows Vista operating system, November 30, 2006 at the NASDAQ market site in New York City. The new business version of the operating system is being released to businesses today and to consumers starting in January. Getty Images logo Getty Images 31 months ago

NEW YORK - NOVEMBER 30: Microsoft Chairman Steve Ballmer speaks during a presentation introducing the availability of the Windows Vista operating system, November 30, 2006 at the NASDAQ market site in New York City. The new business version of the operating system is being released to businesses today and to consumers starting in January.