Running a program BEFORE login

I have a system running WindowsNT 4.0 Server.

I need to run a DOS command whenever the system boots up. This program needs to run BEFORE a user logs in. I want the program to be done by the time I see the “Press Ctrl-Alt-Del to login” message.
How can I do this?

If it makes any difference, what I am trying to run is a single command:
route delete 172.0.0.0

I am deleting a route that is automatically added to the subnet for one of my IP addresses. If I delete it manually, it comes back when I reboot, so I need to have the delete command automatically run on every reboot.

Thanks,
Bowie