# Installation requirements for the i5/OS PASE Debugger

There are several installation requirements to run the PASE Debugger application.

Hardware requirements

- CPU: 400 - 500 MHz
- Memory: minimum 128MB / 256 MB recommended

Software requirements

- Install Java 1.4 or runtime environment (JRE).
- Install JavaHelp or copy jhall.jar to the workstation.
- Install IBM Toolbox for Java or copy jt400.jar to the workstation.
- Copy the JAR file for PASE Debugger (tes.jar) to the workstation.
  - The tes.jar file is located in the /QIBM/ProdData/HTTP/Public/jt400/lib/ directory
- Set the classpath environment variable on the workstation, allowing access to the above files.

For more information, refer to the JavaHelp Web site at the following URL:
http://java.sun.com/products/javahelp