This is a list of the most commonly used environment variables.
| Variable | Description |
|---|---|
| ES_PL1_MFFH | Enables Micro Focus File Handler to perform all Open PL/I I/O operations. The default value is "Y". If it is set to "N", then all I/O will be routed to old Liant file handlers. |
| ES_PL1_MFFH_JCL | Enables you to run Open PL/I programs that access JCL data definitions. The default value is "N". |
| ES_PLI_SUPPORT | Tells the CICS Emulation that it needs to load its subsystem support for PL/I user programs. The default value is "N". |
| MFPLI_PRODUCT_DIR | The location of the Open PL/I installation. It is used to find files needed for compiling and linking. |
| MF_USE_JAVA_CW | Enables you to use Java CodeWatch for debugging Open PL/I programs. |