1)   XnView 1.90.2
XnView is a fast multi-format graphics browser, viewer, and converter. It reads more than 400 file formats. Its main features are batch conversion, image processing with many filters and effects, slide shows, twain support, and foto galleries on CD.

 2)   i-Fun Viewer 8.0
i-Fun Viewer is fast, image viewer with support for all common image formats. It has an streamlined interface and is simple to use. It supports thumbnail browsing, image editing and slideshows

 3)   EZ-Pix 8.0
EZ-Pix is fast, highly functional viewer with support for all common image formats. It has an streamlined interface and is simple to use. Despite its simplicity it offers many advanced functions, such as thumbnails, exporting to HTML & thumbsheets

 4)   Ashampoo Photo Commander 4 5.20
Ashampoo Photo Commander 5 is an all-in-one application for organizing, editing, sharing and presenting photo collections.

 5)   MegaView 11.3
MegaView is a comprehensive viewing solution that supports all common image, multimedia (AVI, MPEG, MP3, etc), text and Office formats. It's advanced viewing features are matched with file management and information distribution functionality.

 6)   Smart Pix Manager 11.3
Software for the management and viewing of all common image, multimedia (AVI, MPEG, MP3, etc), Office, text and web files, allowing you to rapidly search and categorize files using keywords and descriptions (which can be automatically generated).

 7)   IrfanView 4.26
IrfanView is a very fast, small, compact and innovative FREEWARE (for non-commercial use) graphic viewer for Windows 9x, ME, NT, 2000, XP, 2003 , 2008, Vista, Windows 7. It is trying to be simple for beginners and powerful for professionals.