The main purpose of Desktop Inspector is to detect whether, on the Desktop or in any other location, there are unknown invisible items, i.e. files or folders you created unwillingly or by accident, or were created by a third-party software.
In fact you yourself may have unwillingly created an invisible file: for instance, let us suppose you want to drop onto the Desktop the selection of a text and your selection starts with a dot: the risulting file will be invisible! Even knowing this rule one may make this mistake when making a selection in a hurry, especially when drag-n-dropping Internet addresses that have plenty of dots. On the other end, third-party-installed invisible items are usually necessary for a given software to work, although they may also have been planted to act as a virus!
Invisible items (i.e.