Has anyone created a plugin yet to address this feature? MediaMonkey 4.1 works as a UPNP/DLNA server and shows your library as a media library on Windows, etc., which is quite convenient. However, this is really the only thing about MM that is better than MusicBee. I really don't like it otherwise.
Thus, if MusicBee could have a built-in server, I (and many other users) would be quite happy.