IcoFX - IcoFX is an all-in-one solution for icon creation, extraction and editing.
ImBatch - ImBatch is a batch image processor with a nice graphical user interface.
IconWorkshop - Application to create and manage software icons. A must for developers.
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.
Ralpha Image Resizer - High-speed image batch conversion tool