I hoped someone with good Windows knowledge would know of some exotic circumstance where this problem might show up on Windows.

How is the logging done? Ie. Are they simple prints to the respective log files directly from the applications, or are you using some centralised logging mechanism via pipes or sockets?

How & where are the timestamps added?

As for tracking it down more thoroughly, I'd start off by creating a simple UDP logging deamon and have both (all) apps send their messages to that. I'd time stamp them at both ends.

Examine what is said, not who speaks -- Silence betokens consent -- Love the truth but pardon error.
"Science is about questioning the status quo. Questioning authority".
In the absence of evidence, opinion is indistinguishable from prejudice.
RIP an inspiration; A true Folk's Guy

In reply to Re^3: waitpid returns -1 for still running child (Windows) by BrowserUk
in thread waitpid returns -1 for still running child (Windows) by rovf

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