Outlook is notorious for hanging around in the background when a user exits the application. The cause of this is partly a random behavior of Outlook itself and most often a user installed addin that does not release itself from Outlook correctly.
Typically, the solution is to uninstall the offending addin. However, if you really like an addin and can't wait for the developer to fix it or have no addin's installed and Outlook STILL stays running the background then you'll want to try Shutdown Addin.
Comments