Hi @Will Altria
According to your case description, you encountered the problem that you cannot install the Teams meeting add-in for Outlook and cannot schedule Teams meetings from Outlook. Please try the following steps to troubleshoot and solve the problem.
Fix the issue manually
- Verify that the users have the Teams desktop client installed. The meeting add-in can't be installed if you use only the Teams web client.
- Verify that the users are running Outlook 2016 or a later version.
- Verify that all available updates for the Outlook desktop client are applied.
- Exit Outlook.
- Exit Teams.
- Re-register Microsoft.Teams.AddinLoader.dll:
- Open File Explorer, and then navigate to the
%LocalAppData%\Microsoft\TeamsMeetingAddin
folder. - Select the subfolder that has a name that's the same as the version number. If there are multiple subfolders that have the same version number, select the subfolder that has the highest build number. Then, copy the path of this subfolder. For example,
%LocalAppData%\Microsoft\TeamsMeetingAddin\1.0.23334.11
. - Open an elevated Command Prompt window, and then run the following command that's appropriate for your Office installation:
- For 64-bit Office
%SystemRoot%\System32\regsvr32.exe /n /i:user <path copied in step b>\x64\Microsoft.Teams.AddinLoader.dll
- For 32-bit Office
%SystemRoot%\SysWOW64\regsvr32.exe /n /i:user <path copied in step b>\x86\Microsoft.Teams.AddinLoader.dll
- For 64-bit Office
- Restart the Teams desktop client.
- Sign out and then sign in to the Teams desktop client.
- Restart the Outlook desktop client. Make sure that Outlook isn't running in admin mode.
Check the status of the add-in in Outlook
If you still don't see the Teams Meeting add-in, make sure that it's enabled in Outlook.
- In Outlook, select File > Options.
- In the Outlook Options dialog box, select the Add-ins tab.
- Check whether Microsoft Teams Meeting Add-in for Microsoft Office is in the Active Application Add-ins list.
- If the add-in isn't in the list of active applications, and you see the Teams Meeting Add-in in the Disabled Application Add-ins list, select Manage > COM Add-ins, and then select Go.
- Select the checkbox that's next to Microsoft Teams Meeting Add-in for Microsoft Office.
- Select OK on all the dialog boxes that are open, and then restart Outlook.
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