I was busily working along when my keyboard started acting up, so I went to reboot my machine, but since it's not my machine and no one else was here, I first (thinking, I'm so smart) changed the Administrator (which I was logged in as) password (it was an NT box). But then when it came back, that password didn't work (I think, because the keyboard was being screwy.) And the old one didn't work either. After a bunch of Googling, This program ($70) saved the day. I'm sure there's a free utility or a way to do it more cheaply, but it wouldn't have been worth the time.