A design limitation in Windows Installer is lack of scripting - while you can indeed call custom scripts, it is not possible to conditionalize the flow of the main setup sequence itself. Although you may assign primitive conditions to installation tasks, this is far from the ease and convenience of traditional setup development, and very counter-intuitive.
InstallAware embraces and extends Windows Installer, offering the true power of a scripting engine that allows conditionalized execution of Windows Installer commands. Even better, InstallAware does so while remaining within the confines of Windows Installer, and does not require or install a seperate scripting engine.
