REGEDIT4

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Notify\ScCertProp]
"DLLName"="ScCrtPrp.dll"
"Logon"="StartScCertProp"
"Logoff"="StopScCertProp"
"Lock"="SuspendScCertProp"
"Unlock"="ResumeScCertProp"
"Enabled"=dword:00000001
"Impersonate"=dword:00000001
"Asynchronous"=dword:00000001