Visual Doors is automatically installed when you install the Doors.NET software.
When installing Doors.NET, if you opted to create desktop icons, then you will see the following Visual Doors icon on the desktop once Doors.NET installation has completed.
Visual Doors is a separate client that is very graphical in nature. It presents with checkboxes, radio buttons and large square icons, which are quite easy to identify with. For users of a simple access control system, it can be the only software they ever see, even though Doors.NET lies just beneath the surface.