LINK: To pass control to another program at the lower level,expecting to be returned.
LINK passes control from an application program at one logical level to an application program at the next lower logical level.
If the requested program is not defined to CICS, and AUTOINSTALL is active, CICS supplies a definition for the program. If this definition is local , and the linked-to program is not already in main storage, CICS loads it.
In some circumstances, the linked-to program might reside on another CICS region; see Distributed program link.
When the RETURN command runs in the linked-to program, control is returned to the program initiating the link at the next sequential executable instruction.
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