http://bugs.winehq.org/show_bug.cgi?id=22656
--- Comment #5 from Louis Lenders xerox_xerox2000@yahoo.co.uk 2010-05-11 13:33:32 --- (In reply to comment #3)
It should default to native if there is a native version available. If the crash is really from builtin windowscodecs (it doesn't look like it to me), could you get a +wincodecs log?
I tried again, looks like i oversaw something. Adding only the registrykey i mentioned before does not solve the bug. Copying a native windowscodecs into system32 does solve the bug. Sorry for the confusion