IBM SC33-1683-02 - Manual (Page 554)

DFHZATDY is defined as follows in DFHAI62:
DEFINE PROGRAM(DFHZATDY)
DESCRIPTION(Assembler definition for sessions autoinstall control program)
GROUP(DFHAI62)
LANGUAGE(ASSEMBLER) RELOAD(NO) RESIDENT(NO)
USAGE(NORMAL) STATUS(ENABLED) CEDF(NO)
DATALOCATION(ANY) EXECKEY(CICS) EXECUTIONSET(FULLAPI)
sample autoinstall programs
522 CICS TS for OS/390: CICS Customization Guide