what is twonkytuner?

Hello,

when I start twonky, I allways get the messages
Twonky server IS running.
twonkyproxy is running.
twonkytuner is not running.

I tried to find out, what and where I can find twonkytuner, but no info found.

Please, can anyone explane what twonkytuner is and how to use / configure it?

Thanks a lot...