Windows XP Key ändern

        public void ChangeXPKey(string Key)
        {
            object WSH;
            Key = Key.Replace("-", "");
            WSH = CreateObject("WScript.Shell");
            WSH.RegDelete("HKLM\\SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion\\WPAEvents\\OOBETimer");
            foreach (object Obj in GetObject("winmgmts:{impersonationLevel=impersonate}").InstancesOf("win32_WindowsProductActivation"))
            {
                Obj.SetProductKey(Key);
            }
        }