This is a nifty little application that allows you to view GIF, JPEG, BMP, WMF, ICO, and PCX image files. It does not support the animations in animated GIFs. But it is pretty handy for just finding images on your computer.
Pick Ax An encrypted image file viewer. It supports the PAX format, which allows you to encrypt images for secure distribution. Also support most other popular formats. Viewing, converting, printing, etc.
PicViewer32 An image viewing program with a Windows Explorer look and feel. This program supports .JPG, .BMP, .GIF, and .PNG file formats.
FirstView A Stand-Alone (just one small exe file) image viewer,image converter,image browser and manipulator for all major formats (JPG, PNG, GIF, BMP, PCX, TIFF,...
CDView LE A freeware picture browser and organizer for CD-ROM's. Simply browse from one picture to the next without loading them one-by-one. You can easily organize them by the way.