Hi,
I need to change my Software upgrade user message "The setup will perform a upgrade of '[productname]' wizard " to "The setup will perform a upgrade of [productname]' wizard from '[old version]' to [new version]'.
I figured out this dialog is displayed by the setup.exe launcher, not by Windows Installer. It is taken from the language file (0x0409.ini for English) that's copied to the disk image when you build your release. You can edit it either there (eah time you built your release) or modify the template in theSupport subfolder of your InstallShield program folder (which will globally affect all setups you build on that machine) (info from one of your answers)