Here's where you can download the newest drivers for your Kontrol Dj controller.

• KDJ500 USB drivers for  Windows 98 / ME / 2000 / XP [ ZIP; 509 KBytes ]
  Install USB drivers for the KDJ500 controller. Drivers version 1.06.20 (last updated: 15-10-04).
  
  
• KDJ500 USB drivers for  Windows Vista / XP / Server 2003 / 2000 [ ZIP; 378 KBytes ]
  Install USB drivers for the KDJ500 controller. Drivers version 2.00.00 (last updated: 12-06-07).
  
  
• KDJ500 USB drivers for  Windows 7 / Vista / XP / Server 2008&2003 / 2000 [ ZIP; 843 KBytes ]
  Install USB drivers for the KDJ500 controller. Drivers version 2.06.00 (last updated: 17-12-09).
  
  
• KDJ500 USB drivers for Mac OSX (PowerPc & Intel Mac) [ ZIP; 196 KBytes ]
  Install USB drivers (universal binary) for the KDJ500 controller. Drivers version 2.2.7 (last updated: 23-08-06).