Thanks for the response.

From what I've read, there is no commandline command for foobar to do this. Also, foobar people state that sendmessage is not supported or recommended (which makes me think it's possible). I've googled foobar messages, although I haven't found anything relevent yet. What I need is a list of messages for foobar or something. (I'm not immediately interested in support for winamp atm, just want it working with what I use ;) )