Thanks to the fact that LizaJet Installer is based on a general purpose language you can do everything you want. Although we made a comprehensive Setup Library, with LizaJet Installer you are not restricted to this Library alone.

You can also do it indirectly by creating an ActiveX control, and let the ActiveX control do the work

You also have complete access to Office automation objects, for instance to install  Excel XLA files to Microsoft Excel or install Microsoft Word Macros

With the reference Automation Library tool you can include Automation object in your Installation.