@ bloodbat
Thats what I type into the DOS prompt, right? Pretty sure that's exactly what I did.

I do believe his copy is "cracked", so I don't know if that has anything to do with what happened.... It started out as just a disc Icon, and he told me I needed to extract everything with PowerIso. Then a ton of files and folders appeared. Not knowing what I needed, I created a new folder, put all of the files into the new folder, then "mounted" that folder into the DOS program. Nothing happened. Until everything fell apart.

I do believe his copy is "cracked", so I don't know if that has anything to do with what happened....

It is illegal to use unlicensed software. So better don't create more problems on that PC.