# Derby libraries and scripts: complete reference

This appendix describes Derby libraries and scripts.

- Libraries provided by Derby
  This section shows the different libraries used by Derby and their function.
- Libraries not provided by Derby
  In a Java Development Kit Version 1.3 environment, some special Derby features require that you install additional libraries and place them in your class path (Java Development Kit, Version 1.4 already includes all of these libraries).
- Scripts included with Derby
  The Derby scripts are located in the /bin directory.