I tried to install some new software today - VERY IMPORTANT software for work. I tried several times, and can't get it to install. I keep getting the same error:
C:\Windows\System32\AutoExecNT.
"This system file is not suitable for running MS-DOS and Microsoft Windows applications."

Do you have any clue WHY I got this error? I've gone and tried a diskcleanup. I deleted a ton of files. I organized files into new folders (as if that would have any bearing on the issue ) I tried Windows updates. I did a Virus Scan and a SpyWare scan. My computer has never been so clean and organized

All I keep thinking is "Dear Lord, don't make me spend my tax refund check on a new computer." I NEED this software for work. Its a brand new design program that was $2,500 and I waited as long as I could to get it... I've set out a good chunk of change for this, and now I can't believe it WON'T INSTALL!!!

Help help help!!!