DOS program in full screen

  • Thread starter Thread starter Guest
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Guest

Hi,

I have a DOS program (POS) which runs great on XP, as long as I run it in a Window. When I run it in full-screen mode, it works fine for about 2 to 3 hours, then I get "NTVDM CPU has encountered an illegal instruction" and the program crashes.

Any suggestions?

Thank you. Tanguy
 
"TJ" said in news:D[email protected]:
Hi,

I have a DOS program (POS) which runs great on XP, as long as I run
it in a Window. When I run it in full-screen mode, it works fine for
about 2 to 3 hours, then I get "NTVDM CPU has encountered an illegal
instruction" and the program crashes.

Any suggestions?

Thank you. Tanguy
Click to expand...

Try using the Program Compatibility Wizard to configure the program to
run under the same version of DOS or Windows under which it used to work
before. If it is a DOS-only program, it's an o-l-d program so you might
as well as try Windows 95 compatibility mode right from the start.

Of course, actually identifying the program might provide better help as
anyone that might still be using that program could tell you what they
did to fix the problem if they had encountered it.
 
Hi

you won't find this program anywhere, it's something a friend of mine wrote in CLIPPER and it's only installed in about 50 places. What bugs me is that it works all day long in a dos-box, but crashes in full-screen mode. Any ideas on that

Thanks

Tanguy
 
"TJ" said in news:[email protected]:
Hi,

you won't find this program anywhere, it's something a friend of mine
wrote in CLIPPER and it's only installed in about 50 places. What
bugs me is that it works all day long in a dos-box, but crashes in
full-screen mode. Any ideas on that?

Thanks

Tanguy
Click to expand...

Did you try the Program Compatibility Wizard yet?
 
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