To install an installation-provided ICHPWX11 exit, name the exit ICHPWX11, load it into the link pack area (LPA), and re-IPL.

IBM® provides a sample ICHPWX11 exit routine, and the REXX exec IRRPHREX that it invokes, in SYS1.SAMPLIB. The source for the sample ICHPWX11 exit routine is shipped in the RACEXITS member of SYS1.SAMPLIB. The corresponding load module for ICHPWX11 is shipped in SYS1.LINKLIB.

To use the sample exit routine that IBM provides, do the following:

1. Copy the REXX exec from member IRRPHREX in SYS1.SAMPLIB to the REXXLIB concatenation.
2. Install the exit in the link pack area so that RACF® finds it during initialization. There are two methods you can use:
   • Use an IEALPAxx member in SYS1.PARMLIB to request that MVS™ load ICHPWX11 from SYS1.LINKLIB as a temporary extension to the existing link pack area. Modify all your IEASYSxx members to specify that MVS should use this IEALPAxx member. See z/OS MVS Initialization and Tuning Guide for information. See member RACPARM in SYS1.SAMPLIB for a sample IEALPAxx member. (The RACPARM sample applies to the ICHDEX01 exit. With a minor modification, you can use it to specify ICHPWX11 instead.)
   • Create an SMP/E USERMOD to move ICHPWX11 into LPALIB.
3. Re-IPL.