I don't know how I exactly managed to do this, but my cdrom/cdrw doesn't seem to have autoplay tab anymore.. right-click cdrom and choose properties, there should be autoplay tab, right? well, I only have General and Hardware..
 
Any ideas what I (or XP?) did?
 
Is there any other way to change autoplay options?
 
Of course reinstalling windows would fix the problem but I'm too lazy to go through that again at the moment