一个聊天的程序不错

网络接口调试助手，很有用。网络接口调试助手-Network interface debugging assistants, very useful.

运行服务器端后，客户端可通过ip进行连接，使用udp，支持客户端上传，监控屏幕，以及在服务器运行程序等功能，功能比较强大。-running server, the client can connect through ip, udp used to support client to upload, monitor screens, and the server operating procedures, functions more powerful.

网站设计的思考经典书籍-Web site design of classic books

Reading packets over the network with different protocols

socket控件,由vb编写实现server与client的通信-visual basic socket component, you can use this component to build a server/client communication application easily.

在C#中调试并运行良好的客户机和服务器代码。它有一个单独的说明文档，描述如何编译和运行。它已经在Windows平台上进行了测试；

在Visual Studio 2005环境下写的利用TcpClient类直接发送邮件和接收邮件的实例。界面简洁。可直接运行。-In Visual Studio 2005 environment, the use of written TcpClient class to send messages and receive messages directly to instance. Interface simple. Can be directly run.

获得主机的IP地址-geting host address.

网页上mail组件 -website mail components

一个p2p的c#版源码 -a peer-to-peer version of the c# source