The is the backbone of your installer’s identity. By understanding when to keep it and when to change it, you ensure a seamless experience for your users—from the first click of "Install" to the final "Uninstall."
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 change. How to Find Your Product Code in InstallShield installshield product code
Maintain a "Build Map" that logs which Product Code corresponds to which version number. This is invaluable for troubleshooting customer logs. The is the backbone of your installer’s identity
When you run a command like msiexec /x ProductCode , Windows looks up that specific GUID in its registry to find the cached .msi file and execute the removal. Without the correct code, you cannot programmatically uninstall or repair a specific build. 2. Preventing "Double Installations" How to Find Your Product Code in InstallShield
get-wmiobject Win32_Product | Format-Table Name, IdentifyingNumber Use code with caution. The IdentifyingNumber column is your Product Code. Best Practices for Managing Product Codes