Just upgraded from 98 to XP, i was able to find XP compatible software for most things except my Canon FB620p scanner, I downloaded the software off Canon USA's site, it says it was XP ok. When I try to load it I get a: "NTVDM CPU has encountered an illegal instruction" error. The MS website (Q245184)says to check my Command.com file in Winnt/sys32 and make sure it is not pre 7/11/95 dated. I checked the Win/sys32 (note not WinNT/sys32) file and it is 5/11/98 dated, the article also states to suck it down off a WinNT computer and replace it. I contacted Canon tech support and they said it was a windows problem and then mailed me the same MS (Q245184) article........ Anyone have this happen too? / any Ideas?

Thanx, I had the same problem, and now I know where to look. With my system it wasn't a old command.com file, but a (how do you call it in english) wrong link to command.com in my config.nt file. It was: shell=command.com /e:2048 /p I altered it to: shell=c:\windows\system32\command.com /e:2048 /p My (16bit !) application now just works fine.

I have the same problem here, with some applications that are already installed and some that aren't, I've looked at or for the files listed above, but the ones I find I cannot read. The Exact Error is in a 16 bit Windows Subsystem Box that The NTVDM CPU has encountered an illegal instruction. CS:04c3 IP:883c OP:63 6a 09 59 67 Choose'Close to terminate the application' The it gives you the option of Close or Ignore, the Ignore does nothing. The way things stand now I have a utility in the computer I cannot use because of this error, nor can it be removed, even in safe mode........ I am hoping someone with some knowledge can shed more light on this subject and tell me how to fix it. I really hate to have to reinstall XP Pro again, or just say the hell with it and go back to 98SE.......

I am trying to make my dvd rpc 1 so it is region free. When i'm trying to install it in command promt it gives ntvdm.exe error! pls help