这是一个简单的防火墙，用VB开发的，功能很少，不过可以借鉴一下编程方法，很有用的...

控制ie com 对象实现网站 和内容的过滤，呵呵 有了它在运行就别想上新浪，这是个组件可以加到程序中（原创） -control ie Object com website and content filtering, huh With it running on zero in on Sina, it is a process components can be added (original)

利用操作系统提供的API函数写的防火墙-use of the operating system to write to the API function firewall

基于tdi驱动的个人防火墙，用vc++实现，是一个开源的防火墙-Tdi-driven based on the personal firewall, using vc++ Realized, is a open source firewall

非常优秀而且稳定的防火墙代码-Excellent and stable firewall code

一个专业的防火墙软件，主要针对目前的端口，共享，能监控系统的安全状态，检测到问题能准确通知用户，更新部分模块，增加了实用、可操作性以及提高准确性-A professional firewall software, mainly targeted at the port, share, capable of monitoring the safety of the system state, to detect the problem accurately inform the user, update a number of modules, an increase of utility, maneuverability and enhance the accuracy of

专业的VB个人防火墙源码,有举趣的可以-VB professional personal firewall source code, have cited can be Fun

Delphi6图像编程-Delphi6 images Programming

NDIS中间层数据包过滤方法 适合于开发网络过滤防火墙-NDIS intermediate layer packet filtering method is suitable for development of Web-filtering firewall

一个简单的防火墙程序。-a simple firewall procedures.

费尔个人防火墙 2.1 源程序 供大家学习 和参考-Fairbanks Personal Firewall 2.1 source code for the U.S. to study and reference