Just to be clear, you're talking about hooking up your DOS PC to another PC that contains the Creative card and its IO bay?

Yes, exactly. Sorry for my english 😀

Exact chain would be:

DOS PC
ESS 1869F
Serdaco DB15MIDI
MIDI cable
X-Fi Elite Pro (or Audigy 2 Platinum EX) breakout box in "modern" PC
SGM 180 soudfont

You'll need to run some software (e.g. Midi-ox) on your PC that actually plays back the incoming MIDI data. However you could just as well run MUNT on your pc, or the Sound Canvas VST.

Thanks a lot, I will try it when DB15MIDI arrives.

Now I have everything for weekend tests. I am just curious - wavetable header (currently occupied with DB S2) has the same adress (330) as gameport MIDI. Will they work simultaneously or I have to unplug S2 / reconfigure something?

Today I tested it and everything works great! I just ran SoftMPU on DOS PC and MIDIOX on Windows PC and just watched numbers on the screen 😀 The biggest difference is in the sound of drumkit. It sounds ALMOST like real one (especially cymbals) 😉
The big downside is that another PC must be running so I will use DB S2 for games...

One interesting fact:
Warcraft 2 does not work with GM if it is not the first game started after computer boots up. Anyone else has similar "problem"?