Language Environment provides support which, when used in conjunction with facilities provided in CICS® Version 4 Release 1, gives programmers the ability to write and run Language Environment-enabled command level application programs (run units) in the CICS environment. When this support is used, CICS appears to the Language Environment-enabled program essentially as an operating system, and provides all job, task, and program management facilities. If CICS is being run in 31-bit mode under z/OS, this support permits Language Environment-enabled application programs to run in either 24-bit mode or 31-bit mode. Language Environment-enabled application programs also run on CICS under z/OS.
Communication between a Language Environment-enabled program (run unit) and a non-Language Environment-enabled program (run unit) can be accomplished with CICS facilities such as EXEC CICS LINK and XCTL commands.