ImBatch - ImBatch is a batch image processor with a nice graphical user interface.
ThumbView - ThumbView enables image thumbnails and tooltips in Microsoft Windows XP Explorer (does not work on...
DVDVideoSoft Image Convert and Resize - Free Image Convert and Resize is a compact yet powerful program for batch mode image processing.
MysticThumbs - MysticThumbs generates thumbnails of many image types not natively supported by Windows.
Ralpha Image Resizer - High-speed image batch conversion tool
Pictus - Pictus is a fast, free image viewer that enables Windows to see thumbnails of supported formats, such as PSD. Give it a spin today!