I have an InstallScipt Project and we only want the latest release (4.000.0000) to appy to 3.001.0013 - 3.001.0016. This is all working fine. The problem is that when running the script on previous version the error message is:
The setup has dected that version of is already installed.
This setup is not compatible with this version.
You will have to uninstall the previous version before installing this version.
We DON'T want them to uninstall, but just first upgrade to release 3.001.0016, and then apply the new 4.0 update. Is there a way to change this message? I couldn't find it in the Direct Editor.
You can change the message displayed or the behavior of an update by adding the OnUpdateUIBefore event to your script. The message to be displayed for unsupported updates is determined by the return value from VerProductCompareVersions.
