An addin developed for Framework 2 shouldn't have any problems with
Framework 3 or 3.5.

If the addin is not listed in the COM Add-Ins dialog then it's one of 2
things. Either it's registered in HKLM and is an admin installation, or it's
not registered at all and therefore will never be started by Outlook.

Look at HKLM\Software\Microsoft\Office\Outlook\Addins and see if your addin
is registered there. Look also at HKCU with the same path and see if it's
registered there. You should see an entry for your addin using the ProgID
you set for your addin in the project.

Under that registry key you should see LoadBehavior, Description,
FriendlyName and CommandLineSafe. If those entries are not there the addin
is not correctly registered as an addin for Outlook.

--
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
...
Hallo Ken,

The Add-In is not listen in the COM Add-Ins dialog. The dialog ist eamty.
So I can not activate my Add-In, because I do not see it.
It is also not in the list of deactived items. -- I can't see my Add-In in
outlook.
The registry values are all right - they are the same about the developer
machine.

I deployed all the needed files (components) The test pc and the developer
pc have the same version of XP and Outlook. The .net framework are
different. on the developer pc is the version 3.5 installed and on the
test pc the version 2. But the Add-In is develop for the .net framework 2.


Thomas