Yeah, what I really mean is that I know that this stuff are not just reg key, but in the pack they are. Well, I don't remeber that in this pack the MRT original exe file is replaced by a stubbed one, but you can agree that just the current version id added via reg key can satisfy the WU. As I mainly use an italian XP (and a relative updatepack), all I can say is that a stubbed exe for the browser choice is more necessary! WGAN is suppressed by a reg key, the legitcheckcontrol.dll is also part of the wga validation, and wgav is necessary to acces the WU website.