Hummingbird Addin

[Danny]

I am repackaging Humming DM Extensions,
There are 2 add-ins for Outlook XP.
They are both visible in the Add-in manager.
Only when i start Outlook, it says, error, try to add the add-in manually.
When i do so and i restart Outlook the message apeers again.
Can somebody tell me where i can find those settings in the registry, i know
the are at HCLM\...\... exchange\addins.
Is there any setting in the Classes root?

Thanks

greetz Danny