You can use the system registration function to register exit programs that should be run when certain events occur. To list the registration information on your system, type WRKREGINF OUTPUT(*PRINT).
For each exit point on the system, the report shows whether any exit programs are currently registered. When an exit point has programs that are currently registered, you can select option 8 (Display programs) from the display version of WRKREGINF to display information about the programs. Use the same method for evaluating these exit programs that you use for other exit programs and trigger programs.