Hi, I have a custom action which runs a VB Script to write a registry key under HKCU. The content of the VB Script file is given below: Dim WshShell, bKey, ver, regVal Set WshShell = CreateObject("WScript.Shell") bKey = WshShell.RegRead("HKCR\Outlook.Application\CurVer\") ver = Right(bKey, 2) regVal...