'Registry Wizard', and 'Futurix Tools'

Registry Wizard

Scan windows registry for critical and non critical errors. Fix found Registry Errors. Delete useless registry keys and those containing errors. Restore registry keys and values from backup file.

http://geocities.com/sergey.tikhomirov/regwiz.html

Futurix Tools

FuturixTools is a collection of small utilities for Windows users. The tools are useful for batch scripts or for making quick shortcuts in the start menu. Included tools: Turn Off Display: Puts primary monitor in stand-by mode. Clean Windows MRU: Empties Windows recent documents list. Launch Screensaver: Starts screensaver without any delay. Empty Recycle Bin: Empties recycle bin (for all drives). Refresh Associations: Forces Windows to update file format associations.

http://www.fxfp.com/software/tools/