How do I add new applications to the "Set Default Programs" list in Windows Vista/7?
In the Set your default programs window, you have the ability to allow an application to open all the file types it knows how to handle by default. I have installed several programs, but almost none of them show up. In fact, Mozilla Firefox and Postbox are the only two aside from the built in Windows applications (Paint, Windows Media Player, etc.). How do I add applications to this list so that I don't have to assign each file type to a specific application one by one?