InteriorCAD XS is a plug-in for Vectorworks. In fact, it is a suite of plug-in tools. It does not come as a standard installation; it is something that you have to purchase in addition to Vectorworks.
Vectorworks 2017 has a new custom cabinet tool that is a derivative of InteriorCAD. InteriorCAD comes in two suites: InteriorCAD XS, which we will be looking at, and InteriorCAD, which is the fuller, more complex version for kitchen manufacturing. In this manual, we will only be looking at InteriorCAD XS.