The only times I've seen that are either if there's a load error when the
addin is loaded and/or if the addin dll isn't registered correctly for COM
(not the addin registration but the class registration of the addin dll). Is
your addin dll set to be vsdrpCOM in the register property of the output of
the dll as shown in the setup project? Does the COM Add-Ins dialog show the
addin at all and if so if you check it do you see a load error from mscorlib
or other source?

--
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


"Hahn, Thomas" wrote in message
...
The add in is registered in HKCU and the LoadBehavior has the value 3.

The first line in the OnConnection event is "MsgBox(Hallo World")". But
the add doesn't show the msgbox..
So the event doesn't fired