This chapter provides information about how to use the initialization routine, IRXINIT, and the termination routine, IRXTERM.

Use the initialization routine, IRXINIT, to either initialize a language processor environment or obtain the address of the environment block for the current non-reentrant environment. Use the termination routine, IRXTERM, to terminate a language processor environment. Using REXX in different address spaces provides general information about how the initialization and termination of environments relates to REXX processing. Language Processor Environments describes the concept of a language processor environment in detail, the various characteristics you can specify when initializing an environment, the default parameters modules, and information about the environment block and the format of the environment block.