Installshield Product Code Access

Keep the same Product Code. Increment the product version (e.g., 1.0.1 to 1.0.2). Use InstallShield's "Patch Design" view to create a .MSP file.

: If you change the Product Code, Windows treats the new installer as a different product. This is essential for performing a Major Upgrade installshield product code

To trigger a proper Major Upgrade, you typically need to follow these steps within the InstallShield interface Navigate to General Information: Installation Information General Information Generate a New GUID: Product Code property and click the button to generate a new GUID. Update Version Numbers: Ensure your Product Version is also incremented. Sync the Package Code: Don't forget to update the Package Code GUID in the Summary Information Stream as well. Why does this matter? If you ship a new version with the Keep the same Product Code