WinPcap入门的人使用，简单介绍了WinPcap的使用

多线程文件下载器 显示在listbox里 轮询 从downloadlist.ini中获取要下载的文件，并且校验MD5，存储数据库，重复的不再下载-Multi-threaded file download device displayed in the listbox inside polling from downloadlist.ini get to download the file, and verify MD5, store databases, repeat no longer download

中国电信短信固网网关接口,安全JAVA代码实现《Visual C++网络通信编程实用案例精选》配套源码《Visual C++网络通信编程实用案例精选》配套源码-China Telecom fixed network SMS gateway interface, security JAVA source implementation of the "Visual C Programming Network Communication practical cases selected" complementary source "Visual C Programming Network Communication practical case Showcase" supporting FOSS

由VC++开发的一个有关网络通讯的例程，大家可以参考一下-a network communication example by VC++,users can refer to it.

计算校验和 校验和算法描述：为保证网络上传输的数据的可靠性，在许多协议中都设置了校验和项，例如：IPv4、ICMPv4、IGMPV4、ICMPv6、UDP和TCP 等等。计算这些校验和的算法称为网际校验和算法，简单来说就是：把被校验的数据１６位进行累加，然后取反码，若数据字节长度为奇数，则数据尾部补一个字节的０以凑成偶数。 由于从输入文件读入的数据不能直接满足计算校验和的条件，所以首先对从文件读入缓冲区的数据进行预处理，即读入缓冲区时忽略空格。由于累加是按16位进行的，所以每次从缓冲区中读出4个字符，并将字符转换成对应的16进制数字，如此依次累加，直至数据全部读完。 还有一种情况，即如果数据长度为奇数个字节，则需要判断，并补0累加。程序中利用的是缓冲区长度计数器i和当前读取到计数器j判断数据长度是否为奇数。即如果数据长度为偶数，则读完数据时当前读取到计数器j的值应与缓冲区长度i相等，而如果数据长度为奇数，则读完数据时，当前读取到计数器j>缓冲区长度i，此时需将缓冲区中剩余的两个字符读出，并补0，转换成相应16进制数以后参与累加。 当累加结束后，将累加和的16位以上数据位移下再进行一次累加，并对最后累加和取反即得所求校验和。 -calculated checksum checksum algorithm Description : To ensure the network transmission of data reliability, in many of the agreements are set up and calibration, for example : IPv4, ICMPv4, IGMPV4, ICMPv6. UDP and TCP so on. Calculating checksum algorithm called the Internet checksum algorithm, the simple answer is : as has been the calibration data for 16 cumulative, and then take the anti-code, if the data byte length of the odd, data will make up the tai

shopping 网站的源代码，网站的源代码-shopping web site shopping web site shopping web site

OPC DA 的Visual C++客户端控件，带源码，是学习OPC的好例子。.. -Visual C client controls, with the source code, is to learn from the good example of OPC. ..

本程序使用Visual C++6.0编写，使用了MFC，数据库用的是SQL Server，要正常运行本程序，请安装该数据库，并参加压缩文件中的DBConfig.ini文件。可以监控局域网内所有主机（IP）的上网情况，包括上传下载流量、浏览的网页、上网时长等-This procedure using Visual C++ 6.0 preparation, the use of the MFC, the database used is SQL Server, to the normal operation of this program, please install the database, and participated in the compressed file DBConfig.ini file. LAN can monitor all hosts (IP) access to the Internet, including uploading and downloading traffic, browsing web pages, Internet time and long

极好的 Web 应用程序生成器( 实际是7月份版，到现在作者好象还没更新，不过已相当不错了 )，附带众多的例子和构件，如Web Server、Web程序、小游戏、算法演示等，含全部源码！ 完整功能. 源代码: 有-excellent Web application generator (actually July edition, the author seems to now No update, but have quite a), attached numerous examples and components such as Web Server, Web, small game, the algorithm demonstration, including all source code! Full functionality. Source code :

用vc编的简单聊天室,调用csoket来实现-vc series with a simple chat room, calling to achieve csoket

基于tcp通信的客户端源代码，可以与基于TCP通信的服务器端实现链接并通话-the client for communicating by tcp