Retriever 

Retriever is the best program to find duplicate and similar images on your harddisk. It is also a quick image viewer with thumbnails, slide show and database.
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WinMaster 

A large collection of tools to simplify the use of Windows in a wide range of domains from exploring disks, COMPLETELY uninstalling programs, changing startup pictures, enhancing Windows interface,...
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Echoview Pro 

An integrated suite of powerful, interactive music calculating tools for musicians, sound engineers and producers. With Echoview Pro you can calculate beat times, perform sample calculations, tap tempo, tuner, MIDI chord analysis, metronome and more.
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