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PPID in ps -efW not accurate

The information exists in Windows somewhere, but either does not seem
to be available to ps, or is not fetched by ps, and I don't know
enough to know which...

I tested with both elevated and non-elevated bash sessions, and ps
-efW shows 0 (zero) as the PPID for all Windows processes

Is there any way around this? (already searched archives, but didn't
find anything useful).

-- Erik

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