Shoutbox

This feature is not possible using Plus! Unfortunately, WLM sends your status to a server. Then other users request your status. As WLM 2011 uses a different protocol, it can specify that user x should get the status "offline". Plus! cannot trick WLM 2009 into sending information in the same way. The server would reject the message as it wouldn't understand it (because it uses the older protocol and doesn't recognize the new command)

This is a very basic description of what happens