Symantec WISE INSTALLATION EXPRESS 7.0 SP2 - GETTING STARTED GUIDE V1.0 Getting Started Manual page 42

Advanced Tutorial: Using MSI Script in a Windows Installer Installation
Edit tables of the Windows Installer database (recommended for advanced Windows
Installer developers only).
Edit installation dialog boxes by adding and editing text and controls.
Select dialog boxes to appear during maintenance installations (repair and
uninstall).
Create properties for use in custom installation logic.
Create and edit components manually and assign them to features.
Build complex conditions that must be met for an installation to occur.
For instructions on the tasks listed above, see Windows Installer Editor help.
Wise Installation Studio/Express Getting Started Guide 42