Microsoft television commercial star Kylie, the young girl who makes an instant slideshow, takes the stage at Windows 7's Launch Party in New York, October 22, 2009. Microsoft Corp. launched Windows 7 on Thursday in its most important release for more than a decade, aiming to win back customers after the disappointing Vista and strengthen its grip on the PC market.
REUTERS/Shannon Stapleton (UNITED STATES BUSINESS SCI TECH)