Private/Test-AddinUninstall.ps1
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function Test-AddinUninstall { [CmdletBinding()] param() try { Write-Output "Checking for Teams package..." $teamsPackage = Get-AppxPackage -Name MSTeams if (-not $teamsPackage) { Write-Error "MSTeams package not found" return $false } Write-Output "Preparing for add-in uninstallation..." $tmaMsiPath = "{0}\MicrosoftTeamsMeetingAddinInstaller.msi" -f $teamsPackage.InstallLocation if (-not (Test-Path $tmaMsiPath)) { Write-Error "Teams meeting add-in MSI not found at: $tmaMsiPath" return $false } # Check if add-in is currently installed $addinInstalled = $false $addInPath = "HKLM:\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\{731F6BAA-A986-45A4-8936-7C3AAAAA760B}" if (-not (Test-Path $addInPath)) { $addInPath = "HKLM:\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Uninstall\{731F6BAA-A986-45A4-8936-7C3AAAAA760B}" if (Test-Path $addInPath) { $addinInstalled = $true } } else { $addinInstalled = $true } if (-not $addinInstalled) { Write-Output "Teams Meeting Add-in not found in installed programs. Proceeding with cleanup..." Remove-TeamsAddinTraces return $true } Write-Output "MSI Path: $tmaMsiPath" $logPath = Join-Path $env:TEMP "tma-uninstall.log" Write-Output "Starting uninstallation process..." $process = Start-Process -FilePath "msiexec.exe" ` -ArgumentList "/x{731F6BAA-A986-45A4-8936-7C3AAAAA760B} /qn /norestart /l*v `"$logPath`"" ` -PassThru -Wait -ErrorAction Stop if ($process.ExitCode -eq 0 -or $process.ExitCode -eq 1605) { Write-Output "Uninstallation completed. Performing cleanup..." Remove-TeamsAddinTraces return $true } Write-Warning "Uninstall returned exit code: $($process.ExitCode). Attempting MSI-based uninstall..." $process = Start-Process -FilePath "msiexec.exe" ` -ArgumentList "/x `"$tmaMsiPath`" /qn /norestart /l*v `"$logPath`"" ` -PassThru -Wait -ErrorAction Stop if ($process.ExitCode -eq 0 -or $process.ExitCode -eq 1605) { Write-Output "MSI uninstallation completed. Performing cleanup..." Remove-TeamsAddinTraces return $true } Write-Error "Uninstallation failed with exit code: $($process.ExitCode). Check log: $logPath" return $false } catch { Write-Error "Uninstallation error: $_" return $false } } |