Hooking up into OS shutdown event in .NET WPF-Application on Win7 x64?

This seems to be mission impossible?

According to the comments on this page: http://msdn.microsoft.com/en-us/library/system.windows.application.ex开发者_Python百科it.aspx , others also have trouble archieving it.

Which event is the best one to use? Session.Ending? Exit?

Thanks for any hint!

Sascha

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may be Application.SessionEnding Event?