This plugin is broken and unmaintained.
Removing it would be the best, even if it is referenced in a few places. These we a search and find.
Only hiding the plugin needs also changing/adding code in 3-4 places and makes the code not better :(

h4. Additional Information
Discussion in forums: http://forum.team-mediaportal.com/development-mp-1-0-tv-server-1-0-216/msn-messenger-plugin-39629/