https://bugs.winehq.org/show_bug.cgi?id=42372
--- Comment #10 from Louis Lenders xerox_xerox2000@yahoo.co.uk ---
2.0 Now I see i'm using 2.1 so I did another log and attached it.
AFAICT it seems to get a tiny bit further. Now this --> err:ole:CoGetClassObject class {04fe9017-f873-410e-871e-ab91661a4ef7} not registered
seems to refer to unregisterd and missing ffdshow.ax. You could try same recipe as with previous mp4splitter.ax.
(BTW are these files by any chance not installed by program?)