https://bugs.winehq.org/show_bug.cgi?id=44498
andy andy86@fastwebnet.it changed:
What |Removed |Added ---------------------------------------------------------------------------- CC| |z.figura12@gmail.com
--- Comment #13 from andy andy86@fastwebnet.it --- Excuse me, but what do you mean with "meta-bug"?
In any case, I think your new title do not describe problem, that is "wmv videos do not playing", and it's not sure that missing registry key is the problem, because registry keys is needed just with native .dll, not with built-in.
See bug 43814.