Back2Life 

Handy data recovery tool. No special skills are needed - treat erased and lost files and folders just like normal ones!
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Data Destroyer 

A program for secure file deletion and disk wipe which destroys (by overwriting) data in multiple files and multiple folders on floppy, ZIP or hard disk so that the data cannot be recovered. Single-file or batch-mode operation.
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DirSpy 

DirSpy allows you to see all those using network files within a specific directory. Other impressive features of DirSpy include extensive server/client information, volume information, volume disk space monitoring, directory information, etc.
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