My OS crashed. I had a message that vmm32.vxd was corrupted or missing. When I reboot with a startup disk and go to the c: prompt and try to copy the vmm32.vxd file or run scan it says "file allocation table bad , drive c. Also when trying to start in safemode it won't leave the dos screen.

Hi Val, I had the same thing happen a little while ago, I was prompted to reboot on an installation and when it tried to reboot I received the message file missing or corrupt, O\IFSHLP.SYS O\DBLBUFF.SYS O\VMM32.VXD I was unable to re-install my O/S also couldn't find help to fix it. What I was able to do was install a different hard drive, install Me on it, set the old to slave and recovered everything on that drive. Of course after I install the new hard drive I scan the original for any virus, which by the way there were none. Not saying there isn't a fix for your problem but all considered mine was not that hard or very lengthy. Snap

If the file allocation table is bad, then that is probably why vmm32.vxd is reporting as corrupted. The FAT is what tells your computer where every file it needs is. Try Norton Utilities recovery from the CD. Failing that, format and reinstall from a Windows startup disk. If you don't have one it can be downloaded from here http://www.startdisk.com/Web1/ubd/ubd.htm