Terminus 

Leave No Traces. Destroy files and directories irrecoverably,purge data fragments from free space and file slackspace, destroy data in the same way over networks,fast-search for data to destroy, and more. Network, logging, and automation supportmakes Terminus an admin's best friend. Direct, by-the-book compliance with DoD guidelines as listed in DoD5220.22-M. Supports all 32-bit Windows OSs on x86platforms, from the original Win95 to Windows 2000.(Service Pack 4 or later required for NT/BackOffice.)