Outlook.exe will not terminate

[Kathy]

Basically, I will open Outlook via the icon to read mail. I
will then close Outlook, and if I have Task Manager
open, I will see that Outlook.exe closes correctly.

Now if I launch a mailto: link (or use a program that
launches a new mail), where the Compose Mail window
opens, but not the actual outlook program, the problem
occurs. If I close the compose mail window, by either
clicking Send, or closing it without sending, the
OUTLOOK.EXE task will not exit.

If I launch Outlook again, I'll now have multiple instances
of OUTLOOK.EXE in task manager.

 

[Richard]

Please have a look at the following:
http://www.slipstick.com/problems/close.htm