OnTop XP Compatibility

[Fujiflyer]

Hi

I have used OnTop IFR simulator v5.5A for about 3 years now - since installing WIN XP I cannot load the program. I have tried changing the settings so as to use Win 95 / 98 modes but to no avail. The same is true when I try from the DOS prompt. In all cases I get the message "could not map memory press any key to abort."

Is there anyway around this or will I need to upgrade the simulator / install separate OS? Additionally if I do find a fix I will still need to be able to access the game port for the joystick (Microsoft force feedback type).

Thanks,

Fujiflyer