Outlook COM Add-In not listed in "COM Add-Ins" menu

[Gorath]

Hi all,

I wrote Outlook COM Add-In that adds a custom toolbar to Outlook. It
was working fine, but few days ago, the custom toolbar just
disappeared. Suspecting my COM Add-In was being disabled, I opened
Outlook "Disabled Items" window to find that my COM Add-In was not
listed there. Then, I opened up "COM Add-Ins" window expecting to see
my COM Add-In being unchecked. However, my COM Add-In was not even
listed there! I even tried to register my COM Add-Ins manually by
using "regsvr32.exe", but still couldn't see my COM Add-In in "COM
Add-Ins" window.

I even searched system registry to make sure that COM Add-In object
was properly registered, and found nothing wrong. Can anyone please
tell me in what circumstance, an Outlook COM Add-In stops showing up?
Here is my system spec,

Windows XP/SP1
Outlook XP/SP1

Thanks!

 

[Tom Rizzo [MSFT]]

It's not in the registry either? If you register your addin under the local
machine subkey, it won't appear in the UI in Outlook (just like the Outlook
VBA COM Add-in doesn't appear in the UI) and it will work for all users of
Outlook on the machine.

You can re-register your add-in if it got deleted from the registry and
Outlook will pick it up.

Tom

 

[Gorath]

I found a registry key with COM Add-In name is successfully added
under "HKCU\software\microsoft\office\outlook\addins\" key. I even
searched HEKY_CLASSES_ROOT to make sure that my COM Add-In is properly
registered in the system. My Add-In used to work fine, but all of
sudden it just stopped working. I suspect that some security patches
from Microsoft might be causing this problem. Here is my registry
values under

[HKEY_CURRENT_USER\Software\Microsoft\Office\Outlook\Addins\MyOutlookAddin.MyAddin]
"FriendlyName"="My Outlook Addin"
"Description"="My Outlook Addin"
"LoadBehavior"=dword:00000003
"CommandLineSafe"=dword:00000000
"AddInMon"=dword:00000001

Thanks.

 

[news.microsoft.com]

Hi,

I have experienced the same behavior.

It happend in my case on my own computer after I have made some debugging on
a new version. After that, Outlook doesn't seem to recognize an eralier
version. I got it working by deleting the add-in and installing it again.

Bjørn

I found a registry key with COM Add-In name is successfully added
under "HKCU\software\microsoft\office\outlook\addins\" key. I even
searched HEKY_CLASSES_ROOT to make sure that my COM Add-In is properly
registered in the system. My Add-In used to work fine, but all of
sudden it just stopped working. I suspect that some security patches
from Microsoft might be causing this problem. Here is my registry
values under

[HKEY_CURRENT_USER\Software\Microsoft\Office\Outlook\Addins\MyOutlookAddin.M
yAddin]
"FriendlyName"="My Outlook Addin"
"Description"="My Outlook Addin"
"LoadBehavior"=dword:00000003
"CommandLineSafe"=dword:00000000
"AddInMon"=dword:00000001

Thanks.

"Tom Rizzo [MSFT]" <[email protected]> wrote in message

It's not in the registry either? If you register your addin under the local
machine subkey, it won't appear in the UI in Outlook (just like the Outlook
VBA COM Add-in doesn't appear in the UI) and it will work for all users of
Outlook on the machine.

You can re-register your add-in if it got deleted from the registry and
Outlook will pick it up.

Tom

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