Async UDP TCP demo code

Write a Windows Service that : - makes a connection with a device by IP - it tries to make a TCP connection (Port x). - If that fails then an UDP connection (Port y) - When a TCP connection: * it reports every received string (throw it to console or log , just that i can see it) * when connection lost (or not possible) it retries 3 times before trying UDP * a disconnect action can be send also - When a UDP connection: * it must keep the connection alive every 10 secs (send an INIT) * it reports every received string (throw it to console or log, just that i can see it) * when connection lost it retries 3 times before throw error The application can not wait, so it must be all "Async" threaded in good OO-code so i can build further on it. It must be possible to set up multiple listeners, so the sockets are multilple alive and receiving. I know there is a lot of examples on the internet, but can't make any to work so far and time is running out.