Caesium Image Compressor - Compress your pictures up to 90% without visible quality loss.
IcoFX - IcoFX is an all-in-one solution for icon creation, extraction and editing.
XnConvert - XnConvert is an easy image converter for graphic files, photos and images available on Windows...
IconsExtract - Extract icons and cursors stored in EXE, DLL, OCX, CPL files
DVDVideoSoft Image Convert and Resize - Free Image Convert and Resize is a compact yet powerful program for batch mode image processing.
IconLover - Icon editor for Windows.