Hi is there any chance that one off you could make (or already no of) a plugin which plays music in the covosation that your in if so please reply

I don't think this is possible, sorry. In conversationwindows (IM programs) you can only type, not make sounds (unless you send a specific command wich triggers a sound, the sound needs to be on both computers..yours and your contacts). If you want to let your contacts hear what you are playing, turn on voicechat and use a regular microphone (not a headset) so they can hear all surrounding sounds.

Ye i no that but it like makes the sound all jumpy n stuff

as Sunshine has said, its basically impossible, unless u suggest this to Microsoft to add a Windows Media Player Function to MSN Messenger