A VSTO addin or a shared addin? If VSTO, are you setting the trust on the
assemblies to full trust? Are you strong naming your addin assemblies?

Take a look at the information about debugging managed code addins at
http://blogs.msdn.com/vsod/archive/2...-failures.aspx.
You most likely will have to review the Fusion logs to see where and why the
addin is failing to load (Fusion is the managed code loader).

--
Ken Slovak
[MVP - Outlook]
http://www.slovaktech.com
Author: Professional Programming Outlook 2007.
Reminder Manager, Extended Reminders, Attachment Options.
http://www.slovaktech.com/products.htm


"Dharmendra Parihar" Dharmendra wrote in
message ...
Hi all,
I am creating a add in using VS 2008 for Office 2003.
The Add-in is working gr8 from within VS but when i install the add-in on
even same development system, that will not work any more.
Event the startup event ThisApplication_Startup has not been called.
Please help…
Any help will be greatly appreciated.

Thanks!