微软ping命令的源代码，代码虽小 但是值得看

网络一级拓朴构建源码,可以发现局域网内的路由器与交换机-Construction of backbone network topology diagram C++ source code

一个VC写的通信程序,用CSocket 实现的聊天室程序.-VC to write a communications program realize CSocket chat room procedures.

基于面向不可靠连接的编程 --UDP包的发送与接收-not based on reliable connectivity-oriented programming-- UDP packet transmission and reception

本软件要在网络中实现点对点的实时对话，主要的工作大约有： A).软件界面的实现。 B).两台主机通过Socket进行通信的实现。 C).如何从本机接收到要发送给对方的消息与如何接收到从对方来的消息并显示的过程。 D).进行异常处理。-the software in peer-to-peer networks to achieve real-time dialogue, the main work around : A). Software interface is achieved. B). Two mainframe through Socket communication is achieved. C). How receive from the machine to be sent to the other party and how to receive news from the other side of the news and display process. D). For Exception Handling.

本代码实现了网络组播软件的功能，能发送接收消息，类似于一个组播会议形式-This code of network multicast software to send receive messages, similar to the form of a multicast session

利用Indy组件可以更方便地开发出网络通信软件，Indy开放源代码的形式使用户能有效地实现多线程通信。-using Indy components can be more easily develop a network communications software, Indy open-source form so that users can effectively achieve multithreaded communications.

UDP穿透Socks5的实现 ，一个封装UDP类，支持Socks5代理,原理可参看rfc1928-UDP Socks5 penetrating the realization of a package like UDP, support Socks5 agent, principle can be found in rfc1928

读者需要首先启动聊天服务器程序后方可利用客户端来登录聊天-Readers need to first start the chat server program before it can use the client to log in to chat

获取本机的IP,源代码齐全,功能比较强大,可以直接使用-access to the machine"s IP, complete source code, the more powerful functions can be used directly

要求asp.net环境，并要在IIS里设置网站属性 可以用来限制图片等文件的盗链，0.32版可设置不限制域名 通过referrer判断，如果没有引用页返回真实文件，如果引用页的域名不是本网站域名则返回wbtbForbidden.jpg这个图片，文件不存在返回wbtbNotFound.jpg这个图片 用法：http://www.xmlasp.net/WBAL/-Asp. Net environmental requirements and to the installed IIS Web site attributes can be used to limit pictures of the Irvine document, version 0.32 is not set restrictions on domain names through referrer judgment, if not applied to the real page document, if the pages of the Web site domain name is not returned wbtbForbidden . jpg the photographs, the file does not exist to return to the Photo wbtbNotFound.jpg Usage : http://www.xmlasp.net/WBAL/