Sort of thinking aloud here:
Long shot I know - but if you could find the DOS CD, video and sound drivers for your system you might be able to create a boot floppy and run actual DOS on your PC.
Of course you would only be able to access the game on the disk if you had a FAT partition...unless of course you put it on CD.
Actually you could create a RAM disk for the DOS session (how much RAM do you have over the 640K that DOS needs

) and copy the game from CD onto the RAM disk - now that would be quick! You could deal with drivers the same way.
SD