Also, unlike 95/98/ME, NT 4, 2000, and XP do not have "startup" diskettes that allow you to access the system from a command line. If you boot from the 2000/XP install CD, you can access the Recovery Console, which gives you limited access to the hard drive (only %systemroot% directory tree). NT 4, you are SOL, unless you have some magic disks or are very skilled.