It is a Mac OS type of icon manager.
I have NO icons on my desktop. My frequently used incons are all parked on a dock (bar) at the bottom of my screen. I have the dock set to autohide so when I am not using it, it disapears off the bottom of my screen. When I move my cursor off the bottom of the screen my dock with the icons pop up.
See my desktop below. It shows the dock with auto hide turned off.
My moderately used icons are pinned to the start menu and the hardly ever used ones are in the all programs section of start menu.
