C语言写的端口转发工具，内附源代码

自动网络升级的代码-Automatic network upgrade code

发送消息的小程序 如同NET SEND 最适合局域网中 发送消息-messaging small NET SEND procedure as the most suitable for LAN messaging

这个简单的例子实现两个网络的客户端（NAT后面）通过公共网络服务器，以帮助建立一个P2P connection.Then服务器必须有一个公网IP，和客户端支持NAT架构有限制，不是所有类型的支持，如对称型。

用VC++写的获得IP程序，已经编译通过，使用时去掉文件只读属性，编译即可，很实用的，供参考-With VC++ Write access to IP procedures, has been compiled through the use of paper when removed read-only attribute, the compiler can be very useful for reference

清华大学出版的最新《vc 项目开发全程实录》一书中的局域网监控系统的源程序。-Tsinghua University, published in the latest " vc project development throughout Record," a book of the source network monitoring system.

监听网络上的数据报！-eavesdropping on the network reported data!

面向连接的服务器流程中，必须设置服务器套接字为监听状态；而客户机则是主动连接。无连接客户机和服务器。无连接客户机和服务器在调用的函数方面没有区别，区别在于服务器一般先启动recvfrom等待客户机的数据。客户机和服务器的通信过程为客户向服务器发送数据，服务器收到数据后给予应答，通信结束。-connection-oriented server process, you must set up to monitor server socket state; While the client is active connector. Without connecting client and server. Without connecting client and server in a function called no distinction, the general difference is the server for first launching recvfrom client data. Client and server communication process for clients to send data to the server, the server data received responses and communication end.

这是一个用C++实现的邮件发送类，接受邮件，真的是听不错的。内有详细的说明和测试程序。

银行与其它系统联网，这是客户端，在本站能下载到服务器端的源码。-banks and other networking systems, it is the client, the site can be downloaded to the server side of the source.

Remote网络编程,对一些刚接触网络编程的值得学习!-Remote Network Programming, counting on some network programming worth learning!