The Select Icon dialog appears when you click the Icon... in the Shortcut attributes pane and several others. It allows you to browse for and select an icon from an installation file.
Dialog fields and options
The dialog displays a folders tree and a file list side-by-side, similar to the Files and folders page. Below the two, the icons in the currently selected file are shown. To select an icon, first browse for the desired file, then select one of its icons.
Note: Not all files contain icons; the Select button will remain disabled (grayed out) until you have selected a file with one or more icons.
Displays the symbolic path to the currently selected file, plus the 0-based index of the selected icon. If the file contains no icons, the second field is empty.