If you are deploying the same MSI to different clients and need different Product Codes (for licensing), do not rebuild the MSI. Use InstallShield . A transform can override the Product Code at installation time without requiring a new build.
The Product Code governs how Windows handles installations and removals: Maintenance and Uninstallation: installshield product code
A new panel added to the view in the InstallShield IDE: If you are deploying the same MSI to