1.需要#include <windows.h>
http://zhidao.baidu.com/link?url=yOeEGkhe3-kVI6rCqyNp14IjTyXBkQhLeNt-XSTATR5yfjeEIPa5RkyIGDD7I4B2sc9pWR_UdLosic_bYPngf_
2.blogs
http://www.jb51.net/article/49667.htm
3.reg add
system("reg add "HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\System" /v DisableRegistryTools /t reg_dword /d 00000001 /f")