The rumor, which was started by a small technology enthusiast Web site, had Microsoft changing the product keys for all of its customers using volume licensing. This rumors has since spread across the Internet and been embellished in various ways, including a version from Thursday morning claiming that Microsoft was making the change so it could charge licensees yet again for SP1. "There is no truth in this rumor," Allen Nieman, the Lead Technical Product Manager for Licensing Technologies at Microsoft said Thursday. "We are not changing the way volume licensing customers install or deploy Windows XP. We are not issuing volume licensing customers new product keys. Volume licensing customers are not impacted by any of the changes we are making to activation in SP1. The only folks impacted by the changes we are making in SP1 are people with illegal copies of Windows." This leaves the impression that Microsoft is indeed adding some 'extra' to SP1. But it seems more like a WPA key blacklist or something similiar. Source: WinInformant