Media Player Classic - Register extensions problem

[acrespo]

I have selected all extensions to play with Media Player Classic 6.4.7.4.
When I double click on AVI file in Windows Explorer, Windows Media Player is open instead Media Player Classic.

I already saw my registry for this extension and the correct .EXE file is default to open this extension. The same problem occurs with all registered extensions to Media Player Classic.

Media Player Classic installed in C:\Arquivos de Programas\Media Player (is not the same of Windows Media Player).

Can anybody help me?

[RedDwarf69]

Yes, I used to had the same problem. I can't remember how I fixed it (I did a lot of thinks trying), but I think that unassociate the extensions in WMP9 first (in the preferences of the program) and after associate them in MPC works.