ABBIcon Pro 

A professional and powerful icon conversion and management tool. Create icons from images in 30 formats, from Web pages, from screen capture, Export icons to 17 format files. Includes 40,000 icons. Quickly generate html files for icons.
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Pop-a-BMP-to-ICO 

Pop-a-BMP-to-ICO is a simple image converter that was designed to make creating icons easier by converting 32x32 bitmap images into .ICO files.
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