Ther's still a DOS prompt on win 2000 I think everything will still suport DOS for a very long time but it won't rely on DOS, I think you can still base Windows 2000 on program manager if you want. It's very hard to get rid of old technology because you don't know what might still be using it and it doesn't take up much memory, I've got an old Amstrad that runs DOS and that's from the days when 20Mhz was fast and a hard drive was a real luxury.