Help - where do the shortcut icons live?

[phoenix]

When you install, or update, one of the PC games, you get a nice little shortcut with a unique picture. But where does that picture live, if you need to re-use it, to make the shortcut again (because you've deleted or lost the original...)? Can't find it anywhere in the folders. Anyone know? I mean the icon pic that goes with the shortcut the game leaves on your desktop. Thanks.