Microsoft eventually brought back their own simple installer extension due to popular demand. You can download it directly from the Visual Studio Marketplace Inno Setup:

The "story" of the InstallShield 2015 crack is mostly a dead end. The server-side activation makes it nearly impossible to revive, and modern free tools have largely replaced the need for it. Are you trying to recover an old project or just looking for a way to build a new installer

Revenera officially discontinued the Limited Edition versions, meaning they no longer provide updates or activation support for these legacy tools.

Installer software like InstallShield has high-level system permissions. Using a cracked version is dangerous for two reasons: