Playing video and audio in Explorer preview pane without setting WMP as default player.

Is any way to use Explorer preview pane for playing video and audio files and without setting WMP as default media player?

I know it depends on the "Windows Media Player Rich Preview Handler", but how to set up this handler as default, without associating WMP to media files formats?
Anyone knows a solution?

Here is a registry tweak that shows how to enable it for .mp4 files:

Code:

Windows Registry Editor Version 5.00

[HKEY_CLASSES_ROOT\.mp4\shellex\{8895b1c6-b41f-4c1c-a562-0d564250836f}]
@="{031EE060-67BC-460d-8847-E4A7C5E45A27}"