IconsExtract - Extract icons and cursors stored in EXE, DLL, OCX, CPL files
IcoFX - IcoFX is an all-in-one solution for icon creation, extraction and editing.
IconViewer - Bot Productions's IconViewer utility allows you to view, copy, and save the icons in a file through its property sheet.
Thumbico - Thumbico displays and allows saving the thumbnail or icon of any file, image, document, video or...
JDraw - Open Source SF.net
iConvert Icons - iConvert converts and creates Windows, Mac and Linux icons in one step.