opc server and wak server

lan中的端口映射程序-the port mapping procedures

一个简单的基于UDP的聊天工具，用MFC编程。对于sock编程的初学者来说无疑使很好的学习工具！

用MFC制作的获得网络信息的源程序。-produced using MFC access network information of the source.

局域网聊天客户端与服务器端程序，可以传送文件，具有可扩展性，基于Winsock的VC编程。-LAN chat client and server-side program, you can transfer files with scalability, the VC based on Winsock programming.

一个网络侦听程序-a Network Sniffer

使用线程和XML文件实现程序的下载和更新.DLL文件-threading and XML documents to achieve the download and update. DLL files

一个用VC++.net编写的聊天同步软件,有服务器端和客户端，实现了客户端和服务器端的时间同步，具体算法见程序-A used VC++. Net prepared synchronous chat software has server-side and client to achieve the client and server time synchronization, the specific algorithm, see procedures

很简单的程序，实现多client和server的通信。-very simple procedure, multi-client and server communication.

一款网络打字测试程序，内含程序和源代码，对于VC网络编程有一定用处-A network of typing test procedures, including procedures and source code, network programming for the VC there is some use

实现功能：・ 用户上线・包括新用户上线和已使用过该系统的用户上线・每位在线的用户将会收到该用户上线的通知・该用户会收到所有已在线的用户的信息・朋友下线 　・服务器端删除该用户信息・每位在线的用户将会收到该用户下线的通知，同时删除改用户的信息・聊天终止，文件传输终止・　修改用户名字・用户可以在对应的文本框内直接修改名称・用户可以在保存的Myinfo.txt中直接修改名称・　聊天功能：・公聊：所有在线的用户都可以看到你的发言・私聊：能和所有以在线的用户进行私聊，其他用户看不到私聊对象之间的聊天　　・文件传输　　・能给所有的已在线用户发送文件（先打开私聊窗口）　　・只能给一位用户发送文件，但是却可以接收多个用户发送的文件・查看历史记录　　・可以查看私聊的聊天记录　　・可以查看公聊的聊天记录　　・可以查看服务器端的所有记录-achieve functional : on-line users, including new users on line and have used the system users on the line every online users will be received by the users of on-line users will be notified of the receipt of all users of online information Linear friends server to delete the user information each of the Line users will receive the notification from the assembly line users, delete users change the information termination chat, file transfer, termination of modifying user names users can text box corresponding directly alter the names of users can keep Myinfo.txt directly change the name chat : public talk : all online users can se