Installshield Product Code _top_ Jun 2026

You recompile the installation package without altering features. Troubleshooting Common Product Code Errors

When creating a Major Upgrade (a new version that replaces the old one), you must generate a new Product Code and Package Code, while keeping the Upgrade Code the same.

If this is a new release, ensure you have configured your InstallShield project settings to perform a Major Upgrade, which automatically shifts the Product Code and handles the removal of the old version. Orphaned Applications installshield product code

is what Windows Installer uses to distinguish between different "Major" versions. The Golden Rule: Upgrade vs. Update

If you inherit an old project or need to troubleshoot a client's machine, here is how to find the Product Code of an installed application. Orphaned Applications is what Windows Installer uses to

In legacy InstallScript projects (non-MSI), the Product Code serves a similar function but is managed differently via the Windows registry under HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall . It still uniquely identifies the application, but you lose some MSI-specific upgrade features.

To truly master the product code, you need to move beyond the basics and understand how it interacts with other project settings and how to avoid common problems. In legacy InstallScript projects (non-MSI), the Product Code

Would you like a concrete example of setting this up in an InstallShield project (e.g., for a major upgrade using Upgrade Table)?