Are you working on a major upgrade or need help with upgrade codes specifically?
However, if you want to deliver a patch and allow the product to be recognized as a new version for future upgrades, you have two options: installshield product code
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. Are you working on a major upgrade or
The is found in the General Information section of your project. The stays the same across all versions of
The stays the same across all versions of the same software family, allowing newer versions to find and replace older ones. Where to Find or Set the Product Code
This error occurs when you attempt to run an installation package that shares a Product Code with an application already on the machine, but the package code or version differs.
It serves as the principal signature of your software application on a target operating system.