尝试在防火墙通过UDP打洞

创建原始套接字，构造ICMP协议ECHO数据头，发送数据sendto 接收数据recvfrom，分析返回IP数据头及ICMP数据头 程序代码极其简单，适合初学网络编程者参考- Founds the primitive sleeve joint character, structure ICMP the agreement ECHO data head, transmits data sendto receive data recvfrom, the analysis returns to the IP data and the ICMP data procedure code is extremely simple, suitablly begins studies the network programming reference

win32控制台程序，从WEB服务器通过HTTP下载文件,值得借鉴-win32 console program, from the WEB server to download files through HTTP, it is worth drawing

BT源代码，包括本地的种子文件的生成到经过服务器到接收端的接受-BT source code, including local generation of the seed file to the server to the receiving end through the acceptance of

局域网内的一个简单的聊天程序，分为服务器端与客户端两部分-LAN within a brief chat procedures, divided into server and client part 2

Synchronous machine model- Synchronous machine model

采用CSocket实现的聊天程序 入门socket编程的好东西-CSocket realize the use of the chat program entry-socket programming of good things

一个串口通信的VB源程序,用于控制或者站台的信息显示.-A serial port communication VB source code for the control of the site or the information display.

异步网络通讯,有源代码-asynchronous network communications, active code

用rawsocket构造tcp数据包的程序-Rawsocket constructed using tcp packet procedure

基于openh323开发的网络会议服务器软件。-based on the development of Web conferencing server software.