Installshield Product | Code

The is a unique Globally Unique Identifier (GUID) that serves as the principal identity for a software product in the Windows environment. This string allows the Windows Installer service to distinguish your application from every other software package installed on a system. Why the Product Code Matters

This is useful for automated build pipelines where you need unique Product Codes per build. installshield product code

Keeping the same Product Code means Windows Installer treats the update as an "overinstall." This can be dangerous if you remove components, because orphaned entries may remain. For significant changes, it’s safer to change the Product Code. The is a unique Globally Unique Identifier (GUID)