actually there are two versions of cracking vista the pDx bios emulation and the nopE dvd that has the cracked files in it already, n need to use keygens a all, and ms wouldnt bother trying to boost sales of other companies software if they did have anything about antipiracy it would be there trying to prevent people from using illegal copies of vista, and they cant shut down the bios emulation hack for vista since it would **** of thousand of legit customers