http://bugs.winehq.org/show_bug.cgi?id=58757
--- Comment #5 from Nikolay Sivov bunglehead@gmail.com --- (In reply to Ian from comment #3)
Attached has the results of running a plain Wine install with
env "WINEDEBUG=+windowscodecs"
.. is that what you're after?
Yes, but correct name for it is WINEDEBUG=+wincodecs