illegal?

[cormaira]

'C:\WINDOWS\sytem32\cmd.com
The NTVDM CPU has encountered an illegal instruction.
CS:05039 IP:ffe4 OP:fe ff 1d 09 21 Choose 'Close' to terminate th
application.'


i got this message when i clicked on 'run' and typed 'cmd'
when the message appears there is a beep
the message is titled '16 bit MS-DOS Subysystem'

what's goin on ?

 

[Doug Knox MS-MVP]

http://support.microsoft.com/kb/324767/
"16 Bit MS-DOS Subsystem" Error Message When You Install a Program

While your error message is not included, most 16 bit MS-DOS Subsystem errors are related to this issue.

 

[Mr. Backup]

In my experience, especially lately with the rash outbreaks in virus and
malware infections, you have been infected with "something". This is
disrupting the operation of your OS.