The TutSim subdirectory within the VTS installation directory (i.e. "C:\VTS\TutSim") is an application directory containing the components required to run the tutorial simulator, which is the OEM layer upon which the "Completed Tutorial Example" application and the tutorial application you completed in Getting Started with VTS are based. The VTS tutorial is included in the Getting Started with VTS manual (see "Getting Started with VTS: Introduction to VTS Tutorial Lessons".