Microsoft is to withdraw an anti-piracy tool from Windows Vista, which disables the operating system when invoked, following customer complaints. The so-called "kill switch" is designed to prevent users with illegal copies of Vista from using certain features.
If they could design it properly so it only affected illegal copies then I would have no problem with it. However since it affects some legal copies as well I think they have had no choice but to remove it. Funny isn't it though, they can design an operating system and cannot seem to design a anti piracy program that does not effect legal copies as well. I seem to recall they did the same with XP a couple of years ago and it caused havoc with legal copies as well.