OK, if you are *that* sure then the wavetable probably needs another utility to initialize..
The problem is that I have no idea what that sound card or wavetable actually is. Googling the model name results in hits for two different cards, which may well be the same thing:
MEDIAWAVE MW-0203151
MultiWave Innovation
FCC ID search also gets a hit for MultiWave Innovation.
A google search leads to this obscure page which appears to be a mirror of their archaic web site, and at the bottom you can find some driver links but they are all gone.
http://3430.online.fr/computing/multiwave%20d … vers%20list.htm
But if you check the links they all refer to www.multiwave.com, so do an archive.org search for that:
https://web.archive.org/web/20000815200454fw_ … rt/download.htm
And if you check the ESS Download area:
https://web.archive.org/web/20000817024044fw_ … dio_support.htm
The DOS download package for the 32 PnP card is significantly larger.. So download that:
https://web.archive.org/web/20001016100541/ht … np_3ddoscfg.exe
Aaand.. no, it's not archived 🙁