This solution works great on my machine. I haven't been able to play this in close to 10 years, but the old flying reflexes and strategies are coming back. Very nice. Only downside was that I had to retire my old Wingman Extreme Digital because the gameport never worked, but the new USB stick...
I am the Unregistered guy above.
Mine is from before they changed the joysticks quite a bit. I think that I may have used it on WC4, but probably not WC3. It seems to be connected to the gameport properly since Windows is detecting it. I will play around with VMSound and try to find some...