这个不需要多介绍吧，示范了如何编写3层结构的详细例子

RFC793传输控制协议（TRANSMISSION CONTROL PROTOCOL）-RFC793

这软件是为了进行收发电子邮件的。 利用这个软件，可以实现邮件的收发和管理。-this software is to launch the e-mail. Use of this software can achieve mail transceivers and management.

Java网络编程 电子书资料 详解Socket编程 软件工程专业-Java network programming book information Xiangjie Socket Programming Software Engineering

IP地址格式转换易语言源码,-IP address format conversion easy language source code,

WinNT网络程序的小例子，LM单元必须被安装--A small example about WinNT network program , LM unit must be installed

这是一个Tcp协议的网络引擎，包括两个部分： a、服务器采用完成端口模型，提供了丰富的接口函数 b、客户端采用三线程加重叠Io模型，速度快，稳定 都采用回调函数接收数据，是对网络Tcp模型Socket的完整封装，所有代码在Windows2000下测试通过，并已应用到很多现有的中型网络系统中。-This a remarkably agreement Network engines, including two parts : a server used to complete port model, a rich interface function b, client using three overlapping threads increases Io model, speed and stability using a callback function to receive information, the network model DEC Socket complete package, all of the code in the test under Windows 2000, and has been applied to many existing medium-sized network systems.

用wincap抓icmp报文的示例程序，开发工具VC6.0-Icmp packet with wincap grasp the sample application, development tools VC6.0

网络开发工具包，包含三个类：服务器，客户端和消息队列 -Tool lib for network development, contains three class : server, client and message queen

这个程序非常好用，一定不要错过哦，有问请请ＭＡＩＬ通知-this procedure is very useful, we should not miss, oh, please ask please notify MAIL

vc6.0能够编译通过 能够扫描内网和外网IP的端口段