ntvdm.exe hangs.

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Windows XP Pro SP3.ntvdm.exe has suddenly stopped working whether I run cmd.exe or command.com. No error messages, no prompt, just a blinking cursor. If I run cmd.exe all of the internal DOS commands like DIR &amp CD work fine, but when I try to run one of my DOS programs ntvdm.exe

starts and hangs. When I run command.com ntvdm.exe starts immediately and hangs.This started when I installed a trial version of Nero 9 CD Burner. I discovered this problem and uninstalled Nero 9 about 2 hours later, but the problem persists. The Nero tech support crew had me do a scan and send it to them, but concluded that they didn't

do anything to my computer to cause this problem. I have noticed that I have an empty folder named WindowsPowerShell in the windowssystem32 directory, but I don't know if it was there before installing Nero 9. I've never used it. I also noticed there was

no dosx.exe in the windowssystem32 directory. I copied it from the dllcache folder and that made no difference. Seven weeks searching on the net has produced nothing. I discovered Process Monitor from Sysinternals yesterday and installed it. Fascinating

program! After scanning through thousands of lines of the events after ntvdm.exe starts until it hangs, several times, the only thing I've found is one 'access denied' to something ntvdm.exe did. I don't recall the details. No missing files.This is driving me crazy! Any help you can provide will be greatly appreciated!

 

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