UltraDefrag is powerful Open Source defragmentation tool for Windows NT. It's engine is very fast, because it is created as kernel-mode driver. They are three interfaces to them: graphical, console and native. First is very useful, because it use cluster map visualization. Console is good for task scheduler, and native tool - for advanced users and programmers.

Changelog:

• Boot time defrag added
• Filter presets added
• 'progress bar disappears' bug fixed
• Installer improved
• 'paranoid debug print' option added
• Documentation and web site improved

Program Information Category: Tools and Utilities Type: Free Version: 1.1.0 Size: 105KB Works on: Windows Product page: here