I will show some common windows xp icons which is being used by Microsoft Corporation. I thought we are familiar with some common desk top icons that are used to represent folders like My computer, Network places, My pictures and so on.
Desktop Icons:
Below is the list of icons that we are used to represent some important folders in desk top and in some other places.
I thought you are now clear about Icons and their uses. The above icon set is the one which is commonly used for windows application and for website design.
Toolbar Icons:
There are some icons which is used in the toolbars to represent some actions such as back, forward, refresh and so on. See this Icons below which is used to represent these actions in toolbars.
Image Source : Microsoft CorporationThese are some major icons which is commonly used by windows xp to represent folders.