How to detect when application terminates?

Question

This is a follow up to my initial question and I would like to present my findings and ask for corrections, ideas and insights. My findings (or rather interpretations) come

Answer 1

Prompted by ssg31415926's question/answer (this question is a bit reversed), there's also Application.SessionEnding which is called when the when the user logs off or shuts down. It is called before the Exit event.