如何设置多播套接字属性，并使用它时，多播路由问题。

各种网络程序的源码，来自一本网络编程书的光盘资料-Procedures for a variety of network source, from a network programming book, CD-ROM

这个程序可以实现移动公司短信中心和SP之间的连接。数据传输，文件传输。-This process can realize Mobile message center and the connection between the SP. Data transmission, file transfer.

网络嗅探程序，专门记录网络中浏览过的网站的url。-Network sniffer program, which tracks the network of Web sites visited url.

完整的远程文件管理系统，具有用户注册，用户文件管理，多线程文件传送，窗口管理视屏等功能。是学习网络软件开发和网络软件应用不可多得的超级码代码，总的代码行数已达2万行（20000行），但不得用于商业用途，否则可能会侵权，受到法律追究，谢谢。-Complete remote file management system with user registration, user document management, multi-threaded file transfer, screen window manager functions. Learning Network is a network software development and software application code code super rare, the total number of lines of code has reached 20,000 lines (20000 lines), but shall not be used for commercial purposes, or may be infringement, subject to legal action, thank you.

飞鸽传书 飞鸽传书-Dove Dove Chuanshu Chuanshu

vc编的web网络浏览器-vc series of the web browser

一个系统自动升级程序，可远程自动更新系统。-Automatic escalation procedures, automatically update the system remotely.

采用CAsyncsocket类连接代理服务器-used CAsyncsocket category, Proxy Server

socket套接字通信，TCP/IP协议，对网络编程很有用的。支持下哈!-socket socket communication, TCP/IP protocol, network programming very useful. The support of Kazakhstan!

说明： 学习之余做的一个源码。 带有base64的编码和解码， 但是没有html格式的解码，发送邮件很成功，接收邮件有一点问题，接受到本机以后， 若邮件编码是txt的，能够正常显示，若是mime的编码，就直接显示源码。 收发均封装好了类 可以直接 继承使用！ -Description: learn to do a source. With base64 encoding and decoding, but no html format decoding, sending mail was a success and have a little problem receiving mail, received after this machine, if the message encoding is a txt that can display, if the mime encoding directly show the source code. Transceivers are packaged good categories can be directly used to inherit!