This section describes the REXX exits you can use to customize REXX processing. REXX exits are not standard-format exits. Some receive non-standard exit parameter lists and some receive no parameter list. Generally, you use TSO/E exits to customize a function or command on a system-wide basis. You use the REXX exits to customize REXX processing on a language processor environment basis.

Before you use the REXX exits, review to help you understand REXX processing and specifically, language processor environments. This section frequently refers to .