Where is the APP?!

I have a contour Shuttle Pro, works as a mouse, but the extra buttons can be set to other commands within the app (lets you even build your own macros) that let’s me .
OK… so the issue is… WHERE THE HECK IS THE SHAPR3d APP??? That is say, I at least need to be able to point the Contour control app at the shapr3D app so when it starts the shuttle knows to switch to the proper set of button controls and macros. but looking around Windows, I can’t even find the app! The normal properties setting in Windows won’t (doesn’t) even point to an app!
what the ___ ???