open source instant messenger? [closed]

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I am looking for an open source instant messenger based on .Net technologies (C# on Windows), and an open source project which has a small code base is appreciated, since I only need basic text message exchange function. Better authentication by a remote web services.

开发者_高级运维

thanks in advance, George

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The XMPP Standards Foundation links to several .NET SDK libraries for those who wish to build their own IM.

Here's one link:
http://www.ag-software.de/agsxmpp-sdk/

There's also a CodeProject link that shows how easily you can be up and running using agsXMPP:
http://www.codeproject.com/KB/IP/JabberClient.aspx

Hopefully you find these to be good reading!

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Here is C#, SIP instant messenger: https://sourceforge.net/projects/officesip/