Since I've just understood that Session_End may not be called ever, or maybe after a time out, I was wondering when I should "tidy up" files created for the user during that session.
In my app various image files will be made, and I need to delete them sooner or later after session end.
I've thought about doing it with every session start, looking at the date of the files and deleting those more than a few days old, irrespective of the current session.
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