JkDefrag
| JkDefrag | |
|---|---|
| JkDefrag Icon | |
| JkDefrag Screenshot Image of drive during defrag. | |
| Original author | Jeroen Kessels |
| Final release | 3.36.0.2
/ August 31, 2008 |
| Repository |
|
| Written in | Microsoft Visual C++ 2005 |
| Engine | |
| Operating system | Windows 2000 Windows Server 2003 Windows XP Windows XP x64 Edition Windows Vista |
| Type | Defragmentation program |
| License | GNU GPL |
| Website | www |
JkDefrag is a free open-source disk defragmenting utility computer program for Windows. It was developed by Jeroen Kessels (initials "JK", hence the name) beginning in 2004[1] and was released under the GNU General Public License. Since version 4 of 2008, much changed from previous versions, JkDefrag was renamed MyDefrag by its developer; earlier JkDefrag versions continued to be available. MyDefrag, which was closed source freeware, was discontinued, with the last version being v4.3.1, file date 21 May 2010; for several years the MyDefrag website has been a redirect to the still-existing JkDefrag site, but links to downloadable JKdefrag files are dead. JkDefrag source code is still available from third-party websites [2]
Operation
[edit | edit source]JkDefrag has many options. If run without options it groups files into 3 zones with the intention of optimizing speed:
- Directories and system files
- Regular files
- Large files referred to as "space hogs" in the documentation
Files outside their zone are moved to their zone. Directories are perhaps the most accessed data on disk, so zone 1 is placed at the beginning of the drive. After the directories comes a free space area, then zone 2 with regular files, another free area, and then zone 3 with "space hogs", which are large files, archives, Recycle Bin contents, service pack files, and other infrequently accessed data.[3]
JkDefrag characteristics:
- Both command-line & graphical executable programs, about 500 kilobytes total size;
- Automated operation;
- A range of command line interface options, allowing for scheduled defragmentation with administrator scripts;
- No need for installation; runs with default options by opening JkDefrag.exe;
- Screensaver defragmentation, with the option to run another screensaver when done;
- Source code (Microsoft Visual C++ 2005 for 32-bit version and Microsoft Visual C++ 2008 for 64-bit version) available;[4]
- A DLL library (for use in programming) licensed using the LGPL;
- Support for 64-bit versions of Windows XP and Vista with native x64 binaries;
- Documentation available on the web site.
JkDefrag uses the Windows defragmentation API.
Related software
[edit | edit source]There are several graphical user interface utilities designed to work with JkDefrag:
- JKDefrag Option GUI by Emiel Wieldraaijer includes support for 26 languages, and has support for BartPE and U3 implementations.[5] It was also nominated "Repair Tool of the Week" in TechNibble in August 2007.[6]
- JkDefragGUI by Markus Hörl is portable, includes support for 10(+30) languages, and there is a setup version.
- ScanDefrag supports JkDefrag and allows it to run during Windows startup.
Another Windows-based defrag program with a GNU GPL is UltraDefrag before version 8.
See also
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Notes
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References
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