Language Environment supports PL/I applications with the following PSBGEN LANG options in the supported releases of IMS:
| SYSTEM option | Entry point | LANG= |
|---|---|---|
| IMS | CEESTART | PLI or other values except PASCAL |
| IMS | PLICALLA | PLI |
| MVS | PLICALLA | PLI |
| MVS | CEESTART | PLI |
| Other | - - | Illegal |