World of EUC

Let me check this at my customer. I think this is possible.  I implement something in neverred for that. Give me 60 minutes :the_horns::skin-tone-4: 

# Register Teams add-in for Outlook - <https://microsoftteams.uservoice.com/forums/555103-public/suggestions/38846044-fix-the-teams-meeting-addin-for-outlook>
                        $appDLLs = (Get-ChildItem -Path "${Env:ProgramFiles(x86)}\Microsoft\TeamsMeetingAddin" -Include "Microsoft.Teams.AddinLoader.dll" -Recurse).FullName
                        $appX64DLL = $appDLLs[0]
                        $appX86DLL = $appDLLs[1]
                        Start-Process -FilePath "$env:WinDir\SysWOW64\regsvr32.exe" -ArgumentList "/s /n /i:user `"$appX64DLL`"" -ErrorAction SilentlyContinue
                        Start-Process -FilePath "$env:WinDir\SysWOW64\regsvr32.exe" -ArgumentList "/s /n /i:user `"$appX86DLL`"" -ErrorAction SilentlyContinue

you can use this lines to register the addin...this works without teams autostart...

and u can use this line, to kil the autostart....

If (Test-Path -Path "HKLM:\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run") {
                                If (Test-RegistryValue2 -Path "HKLM:\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run" -Value "Teams") {
                                    Remove-ItemProperty -Path "HKLM:\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run" -Name "Teams" -Force
                                }

or simple use neverred to download and install teams :stuck_out_tongue:

I was totally joking man.  :slightly_smiling_face:

Yes, but you are right.... was unfortunately not planned so...

Thanks Manuel, however it didn't seem to work for me :disappointed: Attempting on Win 11 Multi-session. Upon signin i open powershell as the user, run the lines to register the Add-in, then start Outlook. Add-in is not available. Close outlook, start teams, start outlook - add-in is available