Mediacoder and wine through vnc

Hello

I found that MediaCoder fails to work correctly if you are running over vnc session:

err:module:attach_process_dlls "opengl32.dll" failed to initialize, aborting
err:module:LdrInitializeThunk Main exe initialization for L"C:\\Program Files\\MediaCoder\\codecs\\mplayer.exe" failed, status c0000005
err:seh:raise_exception Unhandled exception code c0000005 flags 0 addr 0x7e2adda8

This happens only if you are connected to virtual vnc session (vncserver).

If you are connecting through x11vnc to real graphic session, then everything works fine.

Is this a normal behavior or whose this bug is: wine or MediaCoder?

Thank you

(cross posted form MediaCoder forum)