Icon Searcher 

This tool scans all local hard disks for icons of various file formats and extracts them from files to a more user-friendly visual image list. This also stores found icons in a database and compresses them.
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Microangelo 

The "Grand-daddy" of icon software! This power-packed suite of utilities continues to offer the finest and widest array of features for authors and users alike. Showcase your software or your desktop with Microangelo!
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xp and mac style icons Free 

100 XP style icons for your web and software projects. Each icon is available in four different sizes and six different extensions.Sizes: 48x48, 32x32, 24x24, 16x16 pix. File types:PNG,TIFF,BMP,GIF,ICO,ICNS; (32 & 8 bits)
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