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微软提供的UDP编程实例代码，实现了客户端向服务端发送数据的功能，服务器端接收并显示。(UDP programming example code provided by Microsoft client functionality to send data to the server, the server-side receiver and display.)

一个通过网络高速传输文件的控件： 具有以下特点 1.有高速数据传输功能，超过了Winsock控件的吞吐量 2.入校验功能，满足大数据包的收发，理论上不限数据尺寸 3.加入防错代码，提高了接口鲁棒性(through a network of high-speed transmission of documents, the controls : one with the following features. A high-speed data transmission functions Controls over the throughput of Winsock 2.- Check function and meet large data packet transceiver, Theoretically Open-data size 3. to prevent the wrong code, improve the robustness Interface)

网络数据包抓取代码，压缩包里面的代码比较全，没有解压密码。(network packet capture code,when you extract archive,you no need put in keys.)

检测NAT类型的客户端，程序中指定了服务器IP地址，用户可以自行修改(Detect NAT type of the client, the program specifies the server IP address, the user can modify)

Iperf windows版，新手学习用，相当不错.(Iperf windows version, novices to learn, is quite good.)

VB开发的IP测试程序，这是在我工作中写的调试程序，在配置文件中只需要写上相应的IP，程序就会循环测试IP地址是否在线，不在线的话就会报警提醒(VB development of IP test program, which is written in my work debugger, just write in the configuration file on the corresponding IP, the program will loop test IP address is online, not online, then it will alarm to remind)

说明：  VB环境下WinSock开发网络应用程序，取自电脑报，内附说明文档，讲解清楚(WinSock Development Environment VB web applications, from computer reports, included documentation, explain clearly)

windows 终端服务查询登录信息等。 可用于远程桌面二次开发，使用RDP协议的远程连接等。(windows Terminal Services query log information. Remote Desktop can be used for secondary development, the use of RDP protocol, such as remote connectivity.)

qt 开发的聊天源代码，使用 qtcpsocket 开发，容易看懂( qt source for tcp client)

IP包监听程序 (IP packet sniffer)