: Updates that modify the version number but do not warrant a complete re-installation of the product. Generate a new code for: Major Upgrades
: When you want the new version to completely replace (uninstall) the previous version. Different Languages installshield product code
Without a Product Code, the Windows Installer service would be unable to determine if a product is already installed, preventing it from managing upgrades or uninstallations. : Updates that modify the version number but