I need some help here to deal with updating the HKLM key only in Windows Registry. I specifically need help to refresh this one only. The key is located in HKEY_LOCAL_MACHINE\SOFTWARE\Policies. There are some restriction enabled for using MSN messenger by using Windows registry. I had kept a reg file separate to enable that instantly. When it is turned on it does not goes off automatically unless I log off. Is there a F5 kind of function available that can help me to do this. Thanks.