I have been researching a sockets issue. I created a VERY simple chat program. I just thought I would post it in case anyone wants to get started using sockets in .NET.
http://members.cox.net/swright56/SocketTest.cs
Run two instances of the program. Press “Listen” in one and “Connect” in the other. Then, in either one, type something in the textbox and press “Send”. It should show up in the other one.