AhaView Free 

This viewer supports all popular graphic formats, including JPEG, GIF, PNG, BMP, ICO, CUR, ANI, WBMP, PSD. You can browse images in thumbnail mode, view pictures full screen with zooming features, convert images to JPEG and Windows Bitmap formats.
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PajantImage 

A powerful ActiveX control supporting GIF animation, JPEG, TWAIN, PNG, TIFF, database storage, thumbnail generation, and many imaging processing operations. Extensive documentation and example code. Excellent on-line support.
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PQBrowser 

TABBED browser opens multiple web pages in the same application. Displays thumbnail previews of open web pages. Makes switching between web sites and pages effortless. HotKey Shortcuts, Stop Popup Windows, Wipes Cache, Image Slideshows, MUCH more.
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Zoom Studio 

Zoom Studio 2 : Manage images, Zoom images in realtime, Display images in Fullscreen, Create Zoomable thumbnail galleries, Create smooth fly through animations from still images, Convert web pages to zoomable pages and much more without HTML coding
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Digital Photo Web Slide Show 

Turn your digital photos or images into thumbnail galleries or javascript slide shows. Your friends and family will love viewing your photos on any web browser either locally on your hard drive or on your web site. Part of Digital Photo Slide Show.
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iBrowser 

iBrowser is free but powerful image and thumbnail viewer and browser allowing to preview folders with large number of images. You can change look and feel of the program and save your interface layout. All popular graphic formats are supported.
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