Creating a Multi-User TCP Chat Application shows…
Creating a Multi-User TCP Chat Application shows how to write asynchronous TCP socket applications using .NET.
Creating a Multi-User TCP Chat Application shows how to write asynchronous TCP socket applications using .NET.
HTTP Made Really Easy is a great article that describes the basic HTTP protocol should you wish to implement your own client/server.
If you’re interested in writing apps that use the MSN Messenger protocol, Chris Sells has written some simple C# code to send messages.