i right clicked on the video I wanted to watch out of my shared file and checked the box that said to use this player for all files if thats what your asking... and so when I choose to watch any file that I have already downloaded that are in my shared folder it goes straight to the VLC player but when I am in limewire and I have a movie half downloaded and choose to preview it, it opens windows media player and then media player tells me that it has to shut down.