We installed it last nite on my roommate's old PII on Win2K. It worked fine except for sound effects in the game were not picked up. It had the music, but no corny sayings or other sound effects. The setup wouldn't recognize his sound card at all (an AWE 64). The speed was really a bit too fast for his old machine too, which I'm sure any machine made in the past 7 or 8 years might be a bit too fast to be enjoyable.
I suspect that if you booted to DOS, installed the game and then the expansion and ran the setup from there, it should pick up the sound card correctly.