Well it would just be the "windows 2000" version of dos....like when you look on this dudes page
http://www.robvanderwoude.com/index.html (ok actually you have to click "batch files" then scroll to and click "format" to see what I mean.
over on the right he lists em....cuz I think when you are talking about w2000 and xp they arent pure "dos" prompts anyway.
Just curious..are there two different dos prompts in w2000?
isnt there a "cmd" and then also a "command" prompt?
try typing both of those in the run box and see if they both give a dos prompt....if so try the /autotest in both different versions.
what are you using, a spare hard drive? like "format d: /autotest"? (it is already partitioned right?)