TO GO WITH AFP STORIES by Laurence BENHAMOU, USA-technology-software-leaders(FILES) A group of performers from the Grounded Aerial Dance Theater unfurl the Microsoft logo against a seven-story tall building as part of the Microsoft Windows Vista operating system launch, 29 January 2007, in New York. June 27, 2008, will be Gates' last day at Microsoft, which he co-founded 33 years ago and transformed into a world empire of data processing. Gates will remain nonexecutive chairman and will devote his time to the Bill and Melinda Gates Foundation. The reins of Microsoft will be given to Steve Ballmer. AFP PHOTO/Stan HONDA/FILES