Thats not quite correct. Older versions would run on 9x but I disabled installation on 9x systems in the installer. In the latest version I added an extra check in the program itself, so I disabled it 'properly' in the latest one.
Yeah, VdmSound for 9x is sort of done but its not really finished yet and isnt in a nice installer. Someone who's competant enough to set up VdmSound 9x atm doesnt need a frontend

There are a couple of other issues with it atm regarding a frontend but sometime in the future I will add it if it becomes more complete. To be honest with ScummVM having become as good as it is, there isnt much need for VdmSound in 9x, ScummVM Q+E is there for 9x users who want a scummvm frontend.
As for the 'game launcher' idea, I dunno. It would be really easy to do, I suppose it depends if theres a demand for it. If people would find it useful then yeah, i'll do it. One worry I would have is, it would just be a launcher, it wouldnt actually 'fix' anything. If people are missing the 'set blaster' line in autoexec or whatever it wouldn't magically enable sound. I might end up inundated with emails saying 'Oi I have no sound', to which the answer would of course be 'Use ScummVM, if you have trouble use ScummVM Q+E, a frontend'........
Cheers for the kind words about Q+E