I used free version of InstallShield, built in Visual Studio 2015 to build a setup for my app. Now I want to release an upgrade version for my app, but after installing setup on target machine which has previous installed, I get this error :
Another version of this product is already installed. Installation of this version cannot continue. To configure or remove the existing version of this product, use Add/Remove Programs on the Control Panel.
I tried using upgrade code, but had no success.