Other media players, ones you favour for other media types, should give you the option to make them the default player thus changing associations.
Or you can always select a file type (For Eg: .AVI) , right-click the same and select Open With
and choose the application you want to use(to handle the file type) from the list and select "Always use the selected program"
, click OK and you are all set !
Edited by ReviverSoft, 05 January 2010 - 01:10 PM.