| jtrrcfg | SUMO jtrrouter Configuration |
| jup | Code Crusader User Preferences |
| jvd | JavaView Camera and Display Settings |
| jvi | Java Versant Interface Configuration |
| jvr | JavaView Configuration |
| jvs | JavaScript Proxy Autoconfig |
| jws | Oracle JDeveloper Workspace Settings Data |
| kax | Kieker Configuration File |
| kbcf | Knowledge Master Configuration Data |
| kbd | Autodesk 3D Studio MAX Keyboard Shortcuts |
| kbd | Parallels Desktop Keyboard Preferences Data |
| kbdx | Autodesk 3D Studio MAX Custom Keyboard Shortcuts |
| kbn | TeamSpeak Keybinding |
| kcf | Sony Ericsson HID Keypad Configuration |
| kfe | Koffiee Login Data |
| kfg | Adobe Acrobat Preflight Profile |
| kfp | KaraFun Karaoke Presets |
| kgr | SmartConfig Configuration Data |
| kik | Kickabout Settings |
| kin | The Kinemorphic 3D Screen Saver Settings Data |
| klc | Windows MKLC Keyboard Layout |
| kp04 | KPT Presets Data |
| kpf | KARMA Triton Preferences Data |
| ksr | Kiwi Syslog Rule |
| ktc | Attachmate KEA! Configuration |
| ktw | KeyTweak Configuration |
| kuip | Kingsoft Office Personalization |
| kvm | KVM Configuration Data |
| kx | kX Project Mixer Settings |
| kxc | KEA! X Server Settings Data |
| ky3 | RAC6181 Keypad Configuration |
| kys | Adobe Photoshop Keyboard Shortcut Settings |
| las | Light-O-Rama Animation Sequence |
| launch | Zend Studio Debugger Configuration Data |
| lbf | WaterGEMS LoadBuilder Configuration Data |
