Windows XP worked just fine. M$oft is just greedy; they are not satisfied with having the most used OS in the world. They want the entire world to roll over and abandon a perfectly good OS on Lord Redmond's command. It might have worked had Windows Vista worked, but it didn't. Windows 7 launches a denial-of-service attack on itself if you have not started it for a couple of weeks. Windows 8 is about to be an even bigger bellywhop.