One stop place for the mainframers to find descriptions, return codes, reason, system action and user response for all of the below.

COBOL
MVS
JCL
VSAM
DB2
CICS
IMS
IDMS
REXX

This is a freeware program from IBM Mainframes site.

Get the download link here http://ibmmainframes.com/about64780.html

 

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