What's a 16bit MS DOS Subsystem?

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dear sir,
the prince game is not run in my pc error given
16 BIT MS-DOS Subsysteam
the NTVDM CPU has encountered an illegal instruction
CS:c000 IP:019e OP:63 70 36 31 2d
my pc windows xp sp2

sir
I can't start my MS-DOS application.error comes invalid directory pif file is missing. i am using windows xp.what should i do

i want to open websites/FTP by using CMD line, how do that, i have trying by giving the particular webpage name and try to open in the CMD Line, but it gives an error C:\WIndows\system\cmd.exe - sa
The NTVDM CPU has encountered an illegal instruction
CS:0557 IP:0110 OP:65 6f 2e Choose 'clos' to terminate the application

Sir,
My machine gives an "16 BIT MS-DOS Subsysteam error, "the NTVDM CPU has encountered an illegal instruction"
CS:053f IP:0206 OP:63 61 74 69 6f
my p has windows xp. With several scans no successs, what shall i do?

hi i have a HP laptop with windows XP home edition. i have recently been experiencing 16bit MS DOS error mesages that go as follows: 16bit MS DOS Subsystem C:/DOCUME~1\user\dsccds.exe The NTVDM CPU has encountered an illegal instruction. CS: 0dd2 IP: 0206 OP: 63 61 74 69 6f Choose 'close' to terminate the application.
The error message usually pops up after several blank, black windows have popped up upon start/restart or just after general sleep mode. in fact, the screen is popping up regularly as i type this message and goes away. i have norton anitvirus and a full system scan revealed nothing but a tracking cookie. is my particular message a result of a virus or a program application problem like the comments in this article??
how do i fix this? should i take my laptop to professionals?
thank you in advance for speedy help!!

C:\Windows\system32\mshrm.exe
The NTVDM CPU was encountered an illegal instruction
CS:0541 IP:027a OP:63 75 6d 65 6e
Choose 'Close' to terminate the program..

when i choose close nothings happen
but when i choose ignore this will be the appear

C:\Windows\system32\mshrm.exe
The NTVDM CPU was encountered an illegal instruction
CS:0541 IP:0376 OP:63 75 6d 65 6e

please help my probs..
give somthing like instruction or files that may help my problem

ill try
16-Bit MS-DOS subsystem quick fix error
and I also try
Free Restore
when i run it
the MS-DOS will appear again
like in the TOP..

I can't start my MS-DOS application.error comes invalid directory pif file is missing. i am using windows xp.what should i do

16 bit MS-DOS Subsystem
C:\docume~1\admin~1.del\sUddate.exe
The NTVDM CPU has encounted an illegal instruction
CS:0538 IP:0249 Op:65 74 7b 66

hello sir! I am running ASYCUDA++(automated system for customs data) on my hp compaq,when printing through print file program,it gives the following error:
16 bit MS-DOS Subsystem
The ntvdm cpu has encounted an illegal instruction.
Cs:0460 IP:7925 OP:f0 37 05 14 02 Choose ‘close’ to terminate the application
Close ignore

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