DFSRRC00

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             .-DFSRRC00-.   
>>-DFSRRC00=-+-pgmname--+--------------------------------------><

DFSRRC00
Specifies the name of the program that ZDT/IMS attaches to invoke IMS™. This will usually be the IMS region controller program, DFSRRC00.

If a different program is to be used, it must be in one of the RESLIB data sets. For the RESLIB parameters see RESLIBn.

This parameter is optional. If it is not specified on the HFM1POPI macro statement, ZDT/IMS uses either the value specified on the HFM1POPD macro statement (if specified on that statement), or DFSRRC00 (otherwise).

The user cannot override the value you specify for this parameter.