A demo can be found here: http://www.sdispace.com/inspace.htm
Ironically it says that it works unmodified on Win3.1 up to XP. Which is true safe for the Joystick support.
That doesn't work anymore in NT based systems.
Things I tried:
- since I'm a registered user I contacted SDI about it but they answered me that it is very unlikely that they would try to fix that 🙁 (if anyone cares I can put up the whole conversation).

- tried a keybinder to let my joystick be used like it was the keyboard but that is not working like it worked with its own joystick support.

- of course VDMS doesn't work for a Windows game

Anyone got any idea?