通过网上收集的P2P文件传输及共享材料及源代码，包括即时通，NAT，文件分块，P2P传输等,Through the online collection of P2P file transfer and sharing of materials and source code, including instant messaging, NAT, file blocking, P2P transmission

c#+net+2.0+即时通讯源码服务端客户端+-CSharp net 2.0 source instant messaging client server

非常好的IM源码，可以进行即时通讯。包括客户端和服务器-IM a very good source that can be instant messaging. Including client and server