Our FPDOS 2.6 application (exe file) freezes from time to time in some XP SP2 machines. It doesn't happen in all machines or all the time in those machines that have a problem. I noticed at one time in development that it seemed to occur when moving the mouse.

We have tried running the application in compatibility mode with Windows 2000 (right click in icon)

Config.NT:

dos=high, umb
device=%SystemRoot%\system32\himem.sys
files=99
REM Installed by HASP key software
device=%SystemRoot%\system32\haspdos.sys

Autoxec.NT:

@echo off
REM Install CD ROM extensions
lh %SystemRoot%\system32\mscdexnt.exe

REM Install network redirector (load before dosx.exe)
lh %SystemRoot%\system32\redir

REM Install DPMI support
lh %SystemRoot%\system32\dosx

Any ideas?

TIA,

Alex