How to Use This Document

This document contains three topics:

JES3 Dynamic support programs and installation exit routines, describes how to write user dynamic support programs and installation exit routines.
Installation Exits, contains descriptions of all JES3 installation exits available with JES3. At the beginning of this topic, you will find a chart that shows which JES3 functions invoke which JES3 exits.
Introduction, describes the JES3 macro instructions and how to use them when writing installation exit routines and DSPs.