For "Small Updates" or "Minor Upgrades," the Product Code must remain the same. For a "Major Upgrade" (where the old version is completely uninstalled first), the Product Code must change. How to Find Your Product Code in InstallShield
A product code is a GUID (Globally Unique Identifier) that uniquely identifies a software product. It is often represented in the format xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx. This code is used by the installer and the operating system to identify the product, making it essential for software installation, patching, and uninstallation processes. installshield product code
, where the old version is uninstalled before the new one is added. Conflict Prevention InstallShield Product Code — Complete Guide What the
This is where things get technical. In InstallShield, if you are performing a Major Upgrade , you must change the Product Code but keep the Upgrade Code Definition: The Product Code is a GUID that
For continuous integration (CI/CD) pipelines, you can script Product Code generation using InstallShield’s command line interface (IsCmdBuild.exe) combined with a tool like uuidgen.
For 64-bit applications on 64-bit Windows, check: