UltraDefrag

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.

Design of the UltraDefrag is very ergonomic: no skins, no localization, no animation and so on. It`s true small and powerful program!

UltraDefrag has the following features:
- very fast defragmentation, because engine is kernel mode driver and has optimal Algorithm.
- very small engine written in pure C language.
- nice graphical interface - Compact and comfortable.
- safety, because file moving is realized with special system calls.
- simple to use.
- generate html reports.
- has useful filters.
- has native x64 support.
- free: distributed with full source code under the GNU General Public License.

UltraDefrag 5.0.3 released [2012-02-26]
The GUI report options produce_html_report and produce_plain_text_report were added to the udreportopts.lua file; now the program generates text reports only when they are enabled explicitly.
A problem preventing language selection saving on installation was fixed.
Optional menu icons were added for Vista and more recent Windows editions; they can be enabled/disabled through the show_menu_icons GUI option.
A problem with the GUI cluster map drawing routine was fixed.
Some problems with the disk optimization algorithm were fixed.
Environment Variables expansion support was added to the boot time shell.
The translation Wáray-Wáray has been added. Thanks to the translator.