https://bugs.winehq.org/show_bug.cgi?id=53553
--- Comment #7 from mirh mirh@protonmail.ch --- "Failed to initialize sound driver 'SndDrv.dll'" error means that no dsound.dll could be found at all (just tested this in W10 with the demo).
If this happens, then wine's COM code not only suffers of bug 14771 (i.e. I just found simple HKCU overrides have no effect over HKCR) but they also don't seem to follow the normally expected dll load order for the InprocServer32 directives.