An application program can run commands and programs on a command/program invocation platform. Command/program invocation platforms eliminate the need for MVS™ task initialization and termination each time you invoke a command or program. The TSO/E service facility allows installations to create a command/program invocation platform on which to run TSO/E commands and programs. Authorized commands and programs can execute on a command/program invocation platform, even if you are not using the TSO/E service facility.

This support helps reduce the system overhead associated with the initialization and termination of TSO/E commands and programs by creating a command/program invocation task once per command or program invocation in a TSO/E environment.

You can identify which programs can execute on a program invocation platform by using the PLATPGM statement in SYS1.PARMLIB member IKJTSOxx.

You can identify which commands can execute on a command invocation platform by using the PLATCMD statement in SYS1.PARMLIB member IKJTSOxx.

You can use the TSO/E service facility to create the command/program invocation platform environment, execute commands and programs, and terminate the command/program invocation platform environment. For more information about specifying eligible commands and programs, see Specifying commands and programs for the command/program invocation platform.