I personally haven't tried this, but maybe this will
work. If not, I have used the software at
www.lostpassword.com. It's a bit pricey though.
Here ya go,
http://home.eunet.no/~pnordahl/ntpasswd/
Download Rawrite if you don't already have it and install
it.
http://uranus.it.swin.edu.au/~jn/linux/rawwrite.htm
Then download this file and unzip it to a temp directory
or somewhere you can find it easily.
http://home.eunet.no/~pnordahl/ntpasswd/bd030426.zip
Start Rawwrite and get yourself a floppy. It will write
over anything you have on that floppy so make sure it's a
floppy you don't need.
Use Rawwrite to navigate to where you unzipped the
bd030426.bin file
Click on Write.
Now put take that floppy and place it into the WinNT
machine and boot up the machine.
Use the defaults that the utility prompts you with.
use * to set the Administrator password to blank.
Rebbot the NT machine
Username: Adminsitrator or administrator
password: Blank, Nothing, nada
Hit enter. It should let you in.
Keep Floppy safe. Very dangerous. This is why nobody has
access to my servers.