Exchange extensions use ECF's. Addins register themselves in either HKCU or
HKLM.

Did you use a designer? What language did you use? If you used a designer
you just need to run regsvr32 on the DLL.

--
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


"nickdu" wrote in message
...
I wrote an Outlook Addin a while back and I'm trying to see if it still
works
in Outlook 2003. In can't remember exactly how I got this installed in
Outlook in the past, I think I used the registry keys for an Exchange
client
extension. Now I'm looking to register it in a newer fashion, maybe an
ECF
file. Is that how addins are supposed to be installed/registered? Can
someone point me to docs regarding this and potentially any samples?

By the way, this is not an Exchange extension as I implement the Office
extensibility interface (IDTExtensibility2).
--
Thanks,
Nick