PASE weirdness, and large numbers of spooled joblogs

I've got a problem.

I've got a program that uses InfoZIP, invoked through PASE, to process a large number of ZIP files. In fact, it was the result of some discussions on this very List, a few months ago.

It works great on our V6 box, with a version of InfoZIP that I'd evidently installed some years before.

Today, I tried it on a customer box, and its behavior was very unexpected. I'm going to investigate why it didn't behave as designed presently, but the main question I'm asking here is

Why is it that I have what appear to be several THOUSAND spooled joblogs from running this program (I don't get that on our box), and how do I get rid of those spooled joblogs?

All of these spooled joblogs consist of exactly one message:

Message . . . . : No job log information.
Cause . . . . . : The job log was not displayed for one of the following
reasons: The message logging level has been zero from the beginning of the
job. There are no messages on the job message queue. When printing messages
that were wrapped, no messages that appear in a job log were removed. Only
messages used internally were removed. The job message queue could not be
found.

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JHHL