Best practice is to close Outlook when doing an update to a DLL running
in-process or being used.

--
Ken Slovak
[MVP - Outlook]
http://www.slovaktech.com
Author: Absolute Beginner's Guide to Microsoft Office Outlook 2003
Reminder Manager, Extended Reminders, Attachment Options
http://www.slovaktech.com/products.htm


"Ramesh" wrote in message
...
I have an addin developed using VC++. I am planning to create an agent that
is going to check for updates and do an automatic update of this addin.
The
question I have is: can the automatic update be done without closing
outlook?
If Outlook is open when the agent tries to update, what can I do? Has
anyone
else done it and please share the idea with me?

The main idea is that the update has to be completely automatic without
any
user intervention and I can't use ClickOnce or the new VSTO technologies.

Thanks