这是ecf的原代码，是个plugin，可以实现即时通讯。

端口扫描是一个能够对指定IP地址的单个端口或者多个端口进行扫描的程序； -port scan is a right to specify the IP addresses of individual ports or multiple port scanning procedures;

物理数据迁移器 可以作为pc机之间的数据中转-physical data transfer device can be used as PCs interchange of data between

里面含有3个VC代码，有助于调试VC网络的程序，学习TCP/IP，有一定的参考价值-which contains three VC code to VC network debugging procedures, learning TCP/IP, a certain reference value

计算校验和 命令行：check_sum infile 其中check_sum是程序名，infile是数据文件名 输出：数据文件的校验和。 目的是通过数据链路层与介质访问控制层的学习，根据数据链路层的基本原理，针对普遍应用的Ethernet帧，通过构造一个具体的帧，深入理解网络协议的基本概念与网络问题处理的一般方法。-calculated checksum command line : check_sum infile which check_sum procedures, and infile data output file name : data files, the checksum. The purpose of the data link layer and the MAC layer of learning, according to the data link layer to the basic principles of universal application against the Ethernet frame, and by constructing a concrete frames, in-depth understanding of network protocols and the basic concepts of network issues to deal with the general approach.

win32控制台程序，从WEB服务器通过HTTP下载文件,值得借鉴-win32 console program, from the WEB server to download files through HTTP, it is worth drawing

利用vc6.0开发，可以监控网络实时监控网络流量，同时利用图像分析显示网络流量大小。值得参考。-Vc6.0 use development, the network can monitor real-time monitoring of network traffic, while the use of image analysis showed that the size of network traffic. Worth considering.

文件发送与接收服务器和客户端源代码！简单易懂哦-File send and receive server and client source code! Oh, easy-to-read

WNetAddConnection2变成-WNetAddConnection2 become

监视网络端口的使用情况，以明细的方式列出-surveillance network to the use of the port to the list Details

此代码通过 NetApi32.dll 中提供的API来实现 Windows 系统中网卡MAC地址的获取-This code Netapi32.dll provided through the API to achieve the Windows System network card MAC address access