R-Guard is a reliable data security tool for advanced access right control, encryption and audit, which extends them much beyond the scope of the standard Windows security services.

Terminus 6 - Leave No Traces - The ultimate data destruction toolkit. Erase files, slack space, free space, protect your privacy, zap chunks of data even if they're not in a file, and more. Destroy huge files (2GB or larger) with ease.

Cycle Password -- A Windows NT Domain Password Change Utility. Cycle Password will automatically change your password enough times to exhaust password history, then return your password to its original value...