Re: foxprox pauses

Author: Mike Copeland

Posted: 2014-12-09 at 20:23:05

I believe you have run into the problem where you are running FOXDOS on

a dual- (or more) processor computer. XP and FOXDOS and Dual-processors

end up running reeeeeeeeealy slow.

The fix is pretty simple, and involves replacing a file in the Windows

XP System32 folder....

NTVDM.EXE

with a modified version that has the processor affinity set differently

(I forget the techno babble details now.)

Windows File Protection will complain about it when you try to replace

the file and will attempt to restore the original file from the dll

cache folder, so you have to change it there also.

Shut down the System Restore Capability

Reboot the machine

Copy in the new NTVDM.EXE file

Delete the other copy in DLLCache and then re-enable the System Restore

Capability.

If you want I can either email you a modified NTVDM.EXE file, or you can

modify your own.

Mike Copeland

jerry foote wrote:

> I have a customer running a program i wrote in 1990 in fox for dos with a

> dos os, he has installed the program on a new machine running win xp.

> the problem is now the program stops and waits for 5 minutes. I went over

> today and ran the program interactively and found the program was stopping

> at random spots. The thing I noticed was the speed of execution, it was

> fast. I'm wondering if the machine is too fast. Any one have a suggestion on

> how to slow the machine, or anything to suggest why the program pauses.

> Thanks Jerry

>

>

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