Comment 11 for bug 933495

The application that pops up saying that you need to insdtall certain codecsx to view a file, that tells my I am missing the above mentioned package and tries to install it. I don't know what that program is called, I have tried asking on the IRC's channels but no-one has responded. I cannot get that program to pop-up anymore, if anyone can tell me how to activate it I can get more info