InstallAware

Quick Start Wizard: Easily create new setup projects in literally minutes. Replaces the old "Project Wizard" and the "Default Project" template, but these are still available for use at your convenience.

If Variable Is Defined: The new "Is Defined" parameter of the If command lets you query if variables have been defined or not. Helpful especially with persistent variables and complex setup scripts.

Remove Unpinned Assemblies: Removes all unpinned assemblies from the GAC that were installed by your setup.

What's Unpinned assemblies?

Unpinned assemblies are those which are not used by application(s) any more and can be safely removed from the GAC completely.