DMMidddleWare

封装帧和解析帧，并有CRC校验，完全是自己手写(Feng binding and parsing frame, and a CRC checksum)

用vc实现的sniffer，没有使用winsock与winpcap。十分具有学习价值！(Vc realize with the sniffer, did not use winsock with winpcap. Very much with learning the value of!)

说明：  vc网络编程全解析，多个源码，全部为vc6打开，每个章节的源码例程都包括在里面，很好的东西，供大家学习应用 (vc network programming full resolution, multiple source, all the vc6 open source routines for each chapter are included in it, very good, for everybody to learn application)

一般地，把三角形的三个角A，B，C和它们的对边a，b，c叫做三角形的元素。已知三角形的几个元素求其他元素的过程叫做解三角形。解三角形，常用到正弦定理和余弦定理和面积公式等。正弦定理a/sinA=b/sinB=c/sinC=2R（2R在同一个三角形中是恒(The Triangle software, wrote)

本opc server工具可用于各种opc的调试环境(This tool can be used for a variety opc server opc debugging environment)

用了Windows下的WSAAsyncselect模型编写的服务端.(With the model under Windows WSAAsyncselect written server.)

点对点聊天工具，完整的工程,学习网络编程的可以参考(POINT TO POINT CHAT)

这是一个测试UDP数据包的丢包率的程序，包含程序源码，已经验证成功(This is a test UDP packet loss rate of the program, including program source code, has been successfully verified)

局域网聊天室，实现客户端和服务器端，实现托盘功能，对网络编程和界面编程的同学有一定的帮助。(LAN chat rooms, client and server-side tray function, certain network programming and interface programming students.)

一个高性能的网络数据包处理架构，利用WinpkFilter可以利用应用层函数直接对数据包进行处理，甚至可以在应用层函数sleep（）延缓数据包发送(WinpkFilter is a high performance packet filtering framework for Windows that allows developers to transparently filter (view and modify) raw network packets with minimal impact on network activity without having to write low level TDI or NDIS driver code. WinpkFilter is more than just a firewall development kit for Windows. With WinpkFilter you can make an application that inserts itself into the Windows network stream: custom firewall solution, internet connection sharing (NAT), IP shaper, VPN and many other low-level network solutions completely in user-mode using your favorite development environment: Visual C++, Visual C#, Delphi, Visual Basic, C++ Builder and etc. Using WinpkFilter requires no experience in kernel mode programming on your behalf since WinpkFilter provides you with powerful user level API. However, if you need to implement your solution (to achieve better performance) in kernel mode you can use well-documented raw IOCTL interface as well. )