re: add HKLM/System/MountedDevices to be added by default

[Dan Kegel]

c.f. wrote:
> this is suggested on quite some places in appdb to make seucrom based games come a litle further

Discussed at http://bugs.winehq.org/show_bug.cgi?id=7065#c58
Looks like something of this sort is already in, you must have blinked :-)