改进后的基于局域网通信的客户端，附加文件传送功能

本人收藏的一套成熟且经典的小型邮件发送系统，适合开发OA的朋友使用。-collection of a mature and the classic small-mail delivery system suitable for the development of OA friends use.

socket api 实现FTP 服务器 可实现 简单FTp服务器-socket api FTP SERVER

vc++客户端程序设计适合初学者 ，应用socket（），bind（），listen（），accept（），send（），rec（）等函数说明

VC++6中用DOM遍历网页中的元素源代码，可以枚举出当前浏览的网页的所有元素。 -VC 6 DOM traversal using the website source code elements, Enumerating up with the current can browse the website of all the elements.

MODEM拨号演示,可以通过此程序初步了解电话拨号的过程-modem dial-up demonstration, through this procedure a preliminary understanding of the telephone dial-up process

获取网络上各主机的mac地址-access to the network host mac address

一个开源的sip协议栈，在vc6.0下编译通过，无警告。- Opens the source the sip agreement stack, translates under vc6.0 passes, does not have the warning.

实现TCP穿越NAT(即TCP打洞)。目的是为了实现局域网节点和另一个局域网节点的通信-TCP to achieve through the NAT (ie TCP holes). In order to achieve the purpose of communications between node of local area network and another local network node.

一个短小精悍的UDP点对点聊天代码，虽小但包含了如何设计UDP传输消息，适合初学者快速上手网络编程。-A dapper UDP peer-to-peer chat code, may be small but includes how to design UDP transmission message, suitable for beginners and running faster network programming.

指定发信人发送邮件到指定用户。还有些别的简单代码-designated sender mail to designated users. Also some other simple code