This article describes when to use Adminstudio Tuner versus InstallShield.
Question
When do I use AdminStudio Tuner versus InstallShield?
Answer
InstallShield is used to make any modifications necessary to the base package. It is also used to create new MSI packages. Additionally, it can also be used to add more complex functionality such as custom actions via a transform. InstallShield is capable of a full suite of package creation and modification features. It can also be used for converting .msi to .msix.
Tuner can be used to create response transforms and make small modifications to a package via a transform.
Additional Information
For more information on transforms, see InstallShield Help Library topic Creating Transforms