Disable "... has encountered an error" dialog in cmd shell?

Running Win XP PRo SP2 using cmd.exe.

I've got a command script that runs a series of programs which together take
a couple of days to complete. From time to time one of these steps fails
and we get a dialog box stating that the app has failed and would we like to
debug or not? Of course the machine just sits there waiting for a response
and generally there's nobody there to click the button.

So, is there a way to suppress/disable this "feature?" Interestingly we
don't seem to have this problem when we run on a different machine under
WinXP64.

Regards,
Bill