Fragment - A powerful image viewing suite with advanced metadata info
SageThumbs - SageThumbs is a powerful shell extension allowing to preview enormous amount of image formats...
IrfanView - IrfanView ... one of the most popular viewers worldwide.
ThumbView - ThumbView enables image thumbnails and tooltips in Microsoft Windows XP Explorer (does not work on...
ImageGlass - You can use Image to view your digital images and photos of many different formats.
Icaros - Icaros is a collection of lightweight, high quality, Windows Shell Extensions