$Key2Find = "HKEY_Local_Machine\System\CurrentControlSet\Control\LSA"
$AddValue = "passfilter|"

$readkey = ReadValue($Key2Find, "Notification Packages")
if @error or not instr($readkey,$AddValue)
$nul = WriteValue($Key2Find, "Notification Packages", $readkey + $AddValue, REG_MULTI_SZ)
? iif(@error,"Error","Success")
endif