according to Micro$oft's EULA, you're not allowed to modify any of their files, yet most of us do do that.What I find especially ironic is how easy it is to remove this WGA update, I would definitely not consider deleting a few files and registry keys as a crack. M$ does not force you to install it, and an installation of legit XP without it is legal. Thus, you should also be able to legally remove it.