Commands for installing 3CX without prompts, removing it again and detecting it from deployment tools. A command is shown only when it is certain: from the manifest or the installer technology’s documented default.
Related guide: Silent install switches: MSI, NSIS, Inno Setup · Uninstall a program with the registry or PowerShell
With winget
PowerShell
winget install --id 3CX.MultilineTAPI -e --silent --accept-package-agreements --accept-source-agreementswinget upgrade --id 3CX.MultilineTAPI -e --silentwinget uninstall --id 3CX.MultilineTAPI -e --silentBy installer
64-bit · MSI · All users
Silent install
msiexec /i 3CXTAPI18.msi /qn /norestartWrite a log
msiexec /i 3CXTAPI18.msi /qn /norestart /l*v "%TEMP%\3cx-multilinetapi-install.log"Uninstall
msiexec /x {3FA60327-A17A-45E0-808A-D8B783AADCBC} /qn /norestart- MSI product code
- {3FA60327-A17A-45E0-808A-D8B783AADCBC}
- Uninstall registry key
- HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\{3FA60327-A17A-45E0-808A-D8B783AADCBC}
- UpgradeCode
- {F0FAD719-7293-4B27-A988-33616A0C0B72}
PowerShell: download, verify, install
Downloads the official file, checks its SHA256 and installs it silently.
install-3cx-multilinetapi.ps1
$url = 'https://downloads-global.3cx.com/downloads/3CXTAPI18.msi'
$sha256 = '7DDD595590361895DFA81FB0325CD876232D2573D6F3928E1E85DAA460E606E8'
$file = Join-Path $env:TEMP '3CXTAPI18.msi'
Invoke-WebRequest -Uri $url -OutFile $file -UseBasicParsing
if ((Get-FileHash $file -Algorithm SHA256).Hash -ne $sha256) { throw 'SHA256 mismatch' }
Start-Process msiexec.exe -ArgumentList '/i', ('"{0}"' -f $file), '/qn', '/norestart' -Wait