Compatibility with earlier products

IMS High Performance Unload provides compatibility with earlier products.

Compatibility with DBT V2 HSSR
IMS High Performance Unload is compatible with IMS System Utilities/Data Base Tools Version 2, High Speed Sequential Retrieval (program number 5685-093, also referred to as DBT V2 HSSR), with certain exceptions.
Compatibility with DBT V1 HSSR
IMS High Performance Unload is compatible with IMS System Utilities/Data Base Tools Version 1, High Speed Sequential Retrieval (program number 5668-856, also referred to as DBT V1 HSSR), with certain exceptions.
Compatibility with PO HSSR
IMS High Performance Unload supports compatibility with Program Offering High Speed Sequential Retrieval Version 2 (IFP 5787-LAC, also referred to as PO HSSR).
Compatibility with FSU II
IMS High Performance Unload supports compatibility with IMS/VS Fast Scan Utility II Version 2 (FDP 5798-DFN, also referred to as FSU II).