tcp in .net

I have recently started a chat program for the useres here and i was wondering how or if it is posable to creat a self running program with .net what dose not need framework to be install

so i take it theres not a way around this.

ps is there any way to grab the net work id and send it to the server? to see the user thats on?
soure is here (http://dw5304.250free.com/downloads/chatprogram.zip)