communication ports

Hi there

I cant seem to find the right keywords...

In C#, how do you open/listen/send messages through HTTP ports? Like for example, an IM program - we have an application that sends and recieves messages from a source.

Thanks :)

Here are a couple of links you might find helpful.

http://msdn.microsoft.com/library/de...d8ccabb633.asp
http://www.ondotnet.com/pub/a/dotnet...x1.html?page=2

Here is the Google Search that I did. There may be other hits that would be of interest.