This GUI works pretty good. It is a noticeable effort to have placed two different utilities together. JKDefrag is an excellent defragmenter and this GUI makes it very easy. This application is fast and constantly developed.

This defragger package isn\'t ready for public consumption by any means. Default installation directory is incorrect on an English language PC. It was hardcoded for a German PC. I don\'t think the author realizes how to correctly package software for International distribution. If you are looking for a free alternative to Windows Defrag, try Auslogic instead. This one needs some serious work.

There is just as good GUI under http://jkdefrag.8qm.de/#1 with the languages german, english, dutch, esperanto, spanish, french, russian, japanese and italian. The current version of JkDefrag is also integrated.

Very recommend is this GUI for JkDefrag. (Note: for no-commandline-user)
Feature of GUI is the same as commandline-version of JkDefrag and multilingual (english, france, spanish, portuguese, italian, romanian, german, swedish, hungarian, polish and bulgarian).
This version of JkDefrag GUI is inclusive JkDefrag 3.7.
JkDefrag GUI 0.6 operates faultless on my system (WinXP Pro SP2) and Bart PE (for offline-defragment).

For more information and changelog visit the developer homepage.

With 2K the drive choice does not work at all. Even if you choose a drive different from C:, only C. will be analysed and defragmented :-(