判断IP是否有效

一个用C语言开发的BBS系统，包含在线留言等功能。-a C-language development of the BBS system, including voice mail and other online functions.

sockt编程，局域网内实现客户端和服务器的通信-sockt programming, local area network to achieve client and server communications

端口映射软件.rar 适合研究学习 -Port mapping software. Rar appropriate to study the learning

一个网络聊天程序-a network chat program

这是一个关于dhcp介绍和配置的PPT文档-dhcp briefed on the PPT and configuration files

简单的UDP隧道的实现源代码，即UDP转发-simple UDP tunnel to achieve source code, that is, UDP transponders

在webbrowser中浏览时可以判断“前进”、“后退”是否可以用_goback-the desired command can be viewed and judged, "forward" and "backward" can use _goback

在TCP/IP编程中，Windows环境里 完成端口 模型性能最高，最稳定，响应速度最快，该 源代码就是一个例子，值得研究哦。- In the TCP/IP programming, in the Windows environment completes the port model performance high, stablest, the speed of response is quickest, this source code is an example, is worth studying oh.

Win2000/XP中利用API函数实现信使服务功能-Win2000/XP using API functions courier services