At 17:10 -0600 on 12/15/2010, Chris Craddock wrote about Re: Batch
program to update CVTUSER:
But there isn't any protocol or interface for sharing a single word with
others who would also like to use it. Heck back then we didn't even really
have the concept of an interface. So it rapidly became obvious to most folks
that the user words were in fact useless and their exploiters found another
way to do what they wanted.
OTOH: TCBUSER is still a viable anchor point for within the address
space linkage (you just use the one in the Job Step TCB and possibly
clone it into any SubTask TCBs so you do not need to run the TCB
chain to find the anchor value).
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