WDM drivers suck and you should avoid them on all costs if you are retro gamer. Only use VXDs and if you card don't have it get the 5kg sledgehammer and smash the card buy a decent genuine SB like the 0100 for gaming.
Not long ago I made a Sb Live 24bit work under Win98SE.
Like this card has no 98 driver, the cd is some copyright protected you cant even extract the iso, can't run the installer but it is still possible under 98SE to feed in the XP WDM driver to get the card working but what comes out of it in most of the games like Q1/Q2/Q3, HL, CS ... you will not like.
The sounds are distorted with skips in them. Even the windows login/logout sound sometimes. Only thing it can do "decently" under 98 is play regular music with winamp.
This card btw works fine under XP, linux and newer systems but I would not waste time on cards without VXD drivers.