Not enough information to go on.

What version of Outlook, what version of Windows?

Are you installing for "all users" or for "current user"? Are you installing
the same way with both methods?

Are you running setup.exe or the msi? Does this happen on the development
machine or other machines?

Does the addin show up in the COM Add-Ins dialog? Is it checked? Does it
show some sort of load error? Are there any entries in any of the event logs
related to this?

Are you running as admin or as a user?

--
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


"John" wrote in message
...
Sorry, forgot to mention, the add-in is written in vs2008 using the
outlook 2008 project template. Thanks.

"John" wrote in message
...
Hi

I have an Outlook add-in solution which includes a setup project. If I
install the Outlook add-in by right clicking on the setup project and
sleeting Install then the add-in gets installed fine in Outlook. However
if I use the setup generated in the setup project Release folder then
even though setup runs and finishes, the Outlook Add-in does not appear
in Outlook. What is the problem and how can I fix it?

Thanks

Regards