From: Dennis Misener <dm@...>
Date: 2005-06-29T23:50:41+09:00
Subject: Detecting Windows Shutdown

I needed to perform an orderly shutdown of a Webrick based Ruby 
application.

I thought about trying to catch the WM_QUERYENDSESSION message which is 
sent to all programs when a request to shutdown Windows is made, in 
order to execute some code before Windows exits.

Does anyone know how to do that in Ruby?

Is it even possible?