16 bit MS-DOS subsystem

Microsoft Windows XP

I have windows Xp and i rent my computer and i dont have the windows xp cd. I
am having a problem with an error popping up every time I open a window. It
says just this.
C:\WINDOWS\SYSTEM32\AUTOEXEC.NT. The system file is not suitable for running
MD-Dos and Microsoft Windows applications. Choose 'Close' to terminate the
I tried to close it and it just pops right back up and i tried to ignore it
and it doesnt do anything. I looked for my AUTOEXEC.Nt file it could not be
found I believe it could be my problem. I tried to find it please help me any
way u can but remember I dont have the windows xp disc so please tell me
either how to create it or download something to fix the error THANK YOU!!!

Please see if the following article helps:

"Error Message When You Install or Start an MS-DOS or 16-Bit Windows Based