I have an Optipac that I would like to connect to my computer through USB. But, I am running the dos version of AdvanceMame in Windows 98. I HAVE to use the dos version since I can't program my video card using the windows version. Is it possible to use the Optipac through USB with AdvanceMame running in a dos window of Windows 98, or will I need to connect it through the serial port?