Enjoy the ban
To those asking about autoexec.nt, this has nothing whatsoever to do with the WinXP boot system. Rather, it is a file that contains various parameters for the Windoze XP DOS emulator. (It is very similar to the autoexec.bat used in previous versions of Windoze). To fix the error, open up C:\windows\repair, and copy autoexec.nt to C:\windows\system32, overwriting if necessary. Problem with this is that it doesn't solve the underlying issue (Which I don't understand

), and the file needs to be re-copied at every boot.
Cheers
-Leezer-