This helps: once you find the correct directory and file, make a shortcut and drag it onto your desktop.
The easiest way IMO is to
right click the Beta icon on the Desktop and choose "Open File Location". That will immediately take you to the right place.
Again, right clicking the ahbeta11.exe and choosing "Send to -> Desktop (create shortcut)" is the fastest way to make a shortcut for the DX11 game.