Why Outlook 2007 process is not always closed, if Outlook is close

[Oscargl]

Sometimes I have to close Outlook-Process manually after closing Outlook,
cause the process remains. I this process is not closed, Outlook won't start
again

 

[Vince Averello [MVP - Outlook]]

If you wait for a bit, does Outlook eventually exit. Sometimes I have to
wait 2-3 minutes.

 

[Brian Tillman]

Sometimes I have to close Outlook-Process manually after closing
Outlook, cause the process remains. I this process is not closed,
Outlook won't start again

If Vincent's suggestion doesn't work, see this:
http://www.howto-outlook.com/faq/outlookdoesntclose.htm