I’m encountering a problem with InstallShield while trying to install multiple instances of our product (version 5.4.0). The installation works fine for the first instance, but when I attempt to install a second instance, the InstallShield prompts me with the “upgrade or install” window twice.

I am trying to create a basic MSI installer in Install shield which takes password and few other params from the dialog box and then from custom action calls one test.cmd file passing some params to it. But the executable .cmd file is not getting triggered. I can run the installer and it is creating the files under Program Files folder.

I got a problem with my window app which was created by InstallShield 2022.