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IBM Z Hardware and Operating Systems Ideas Portal


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Status Not under consideration
Workspace z/OS
Categories LE
Created by Guest
Created on Mar 24, 2026

64bit version of USRHDLR

More clients are moving to 64bit these days and have complex multi language calls; and sometimes they need to register their own user condition handler. In 31bit, this is possible using USRHDLR:
https://www.ibm.com/docs/en/zos/3.2.0?topic=options-usrhdlr

Below is one example of how clients may use USRHDLR
https://www.ibm.com/support/pages/apar/PI23475


However, this works only for 31bit. We need a 64bit equivalent of USRHDLR.

Idea priority Medium
  • Guest
    Jul 21, 2026
    .This item is unlikely to be given high enough priority to be placed into the product plan. If you feel that this requirement is needed, please resubmit or create a new updated request.