windows下的聊天程序用vc编写 小试身手，多多指教

Following the development of network and communication technology, traditional telecommunication network meets with great challenges currently. In order to overcome the disadvantages of traditional telecom network, next generation network was put forward in recent years, which bases on IP packet network and soft-switch technology is used. The same problem is also existed in power communication system, so how to build next generation communication system become more and more important.

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基于网页上的抽签系统，Accesss 做后台数据库-website based on the balloting system, do background database Accesss

一个聊天室程序，分为服务器与客户端两部分，更重要的是，附带开发文档，很不错的。-A chat room procedures, server and client into two parts and, more importantly, with the development of the document, it is good.

实现了一个基于socket异步通讯模式的代码，可以很好的学习VC中socket通讯的处理机制。-achieved a socket based asynchronous communication model code, can good learning VC socket communication mechanism.

用UDP协议限制单个数据包大小实现互联网内文件传输。-Use UDP protocal to transport files between different IP with limited data package.

主要讲述了在Win32平台下的Winsock编程，对于众多的基层网络协议，Winsock是访问他们的首选接口。-Focuses on the Win32 platforms under the Winsock programming, for a large number of grass-roots network protocol, Winsock is the access to their preferred interface.

一个关于sip协议栈的信令代理服务程序, 实现穿越nat功能.配合媒体流使用.-a sip of the signaling protocol stack agency services program, realized through nat function. With the use of streaming media.

vnc最新版代码改进，相当有学习价值-vnc the latest version of the code improvements, the value of a considerable learning. . . . . .

winsocket编程用的教程,用的到的可以看一下-Programming Tutorial WinSocket used, can be used to look at