I think I've got an addon question for this thread.
The problem I'm facing is that certain codecs are associated with specific programs. For example, 2 AC3 codecs that I have installed are associated with Nero Digital Audio Decoder. I want to change this association. Of course uninstalling the codec would work to some degree, but I like to know how these associations start in the first place. What makes the codec associate itself to Nero instead of BSPlayer or something...

Anyone any idea?