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I created a setup file which is working awesome.
Now whenever I rebuild an application without changing anything but Package Code is changed and then while I am going to install this version then a dialog will come “Upgrade Dialog” which ask me for upgrade an application.
Now in this situation I want to display an additional dialog created by me.
I am using the Insatllshield 2012 BASIC MSI project type.
I solved this problem.
There are two properties exist in Installshield named “IS_MINOR_UPGRADE” and “IS_MAJOR_UPGRADE”.
When there is a minor upgrade at that time IS_MINOR_UPGRADE will set to 1. And same for Major upgrade.
So using these properties, I can recognize the Upgrade mode.