http://www.codeproject.com/useritems/Instant_Messenger.asp

>I have a book called "C# Network Programming" by Richard Blum.
>http://www.amazon.com/C-Network-Programming-Richard-Blum/dp/0782141765/ref=pd_bbs_sr_1/103-7799866-0219011?ie=UTF8&s=books&qid=1182196498&sr=1-1
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>I have been through it twice.
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>What I would like to do is to be able to pass simple text messages between multiple PC's across
>the internet. A very simple IM application is what I'm envisioning.
>
>So far I'v been unsucessful. I'm not sure if its a firewall issue or something else. Know where I can
>get an example of this?
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>Thanks
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>>WinSock is the old API for the COM based model. In .Net there is not WinSock, but there is a System.Net.Sockets. Here is an excerpt from the docs:
>>The System.Net.Sockets namespace provides a managed implementation of the Windows Sockets (Winsock) interface for developers who need to tightly control access to the network.
>>
>>
>>>Are you referring to .net WinSock, or some other technologies in .Net?