Introduction - If you have any usage issues, please Google them yourself
With VC++ Make the WINDOWS program. Simple example of a firewall. Can realize the function of the general.
Packet : 37724114fanghuoqiang.rar filelist
FangHuoQiang\DrvFltIp\DrvFltIp.cpp
FangHuoQiang\DrvFltIp\DrvFltIp.dsp
FangHuoQiang\DrvFltIp\DrvFltIp.dsw
FangHuoQiang\DrvFltIp\DrvFltIp.h
FangHuoQiang\DrvFltIp\internal.h
FangHuoQiang\Firewall\Driver.h
FangHuoQiang\Firewall\DrvFltIp.h
FangHuoQiang\Firewall\DrvFltIp.sys
FangHuoQiang\Firewall\Firewall.cpp
FangHuoQiang\Firewall\Firewall.dsp
FangHuoQiang\Firewall\Firewall.dsw
FangHuoQiang\Firewall\Firewall.h
FangHuoQiang\Firewall\Firewall.rc
FangHuoQiang\Firewall\FirewallDoc.cpp
FangHuoQiang\Firewall\FirewallDoc.h
FangHuoQiang\Firewall\FirewallView.cpp
FangHuoQiang\Firewall\FirewallView.h
FangHuoQiang\Firewall\MainFrm.cpp
FangHuoQiang\Firewall\MainFrm.h
FangHuoQiang\Firewall\ReadMe.txt
FangHuoQiang\Firewall\res\Firewall.ico
FangHuoQiang\Firewall\res\Firewall.rc2
FangHuoQiang\Firewall\res\FirewallDoc.ico
FangHuoQiang\Firewall\res\Toolbar.bmp
FangHuoQiang\Firewall\Resource.h
FangHuoQiang\Firewall\RuleDlg.cpp
FangHuoQiang\Firewall\RuleDlg.h
FangHuoQiang\Firewall\StdAfx.cpp
FangHuoQiang\Firewall\StdAfx.h
FangHuoQiang\DrvFltIp\Release
FangHuoQiang\Firewall\Release
FangHuoQiang\Firewall\res
FangHuoQiang\DrvFltIp
FangHuoQiang\Firewall
FangHuoQiang