获取客户端的操作系统，获取浏览器级版本等信息。

网络视频电话系统，界面优美，功能强大-network video phone system, beautiful interface, powerful functions.

Time server using TCP-IP

网络五子棋程序源码，使学习使用MFC的CAsynSocket进行网络编程好例子。-network renju procedures source, so learning to use the MFC CAsynSocket network programming good example.

C++Buider/delphi控件，大大简化Socket/TCP/IP编程编程，比使用串口通讯控件还简单-C/delphi controls, greatly simplified Socket/TCP/IP programming programming, the use of serial communication control is also simple

服务器和客户端的VC++实例-server and client examples of the VC

服务器程序要完成以下功能：创建监听Socket进行监听，当有客户端请求连接时，建立一个新的接收Socker处理这个客户的数据发送与接收；接受客户端发来的数据，并向客户端返回相应信息，本程序向客户端返回信息为接收到的信息；将接受的信息通过串口1发送出去-Server program to complete the following functions: Create Socket eavesdropping eavesdropping, when client requests a connection, the establishment of a new deal with the customers to receive Socker send and receive data accept client data sent to the client to return to the corresponding information, the procedure to return information to the client to receive the information will accept the information sent through the serial port 1

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本程序只对一个IP地址进行，如果要对一段IP进行测试，简单修改程序即可。可将发送放在单独的进程 里(使用fork（）），send_icmp里做成循环，每次重新初始化struct sockaddr_in。那么对接收到的数据 进行分析的proc_icmp（）将多一道对IP报头ip->src字段的判断。-this procedure only a pair of IP addresses, IP to a test, a simple change procedures. This can be placed on a separate process (the use of fork ()), causing Lane send_icmp cycle, each re-initialization struct sockaddr_in. Then Butt received the data analysis proc_icmp () will more than one pair of IP header ip-gt; Src field judgment.

套接字源程序，连接换书文字，图片，套接字源程序，连接换书文字，图片，仅仅是个实例-Based on TCP/IP Protocol.

Sniffer 程序.可以监视IE里传输的各种网址.-Sniffer source code , can monite the address appared in IE