If ( Test-Path "${Env:ProgramFiles}\simpleinout-desktop\Simple In Out.exe" ) { Write-Output "Simple In/Out is already installed." ; Exit } # Specify the URL to download the app from $URL = 'https://downloads.simpleinout.com/desktop/Simple-In-Out.msi' # Download the installer $INSTALLER = Download-File -URL $URL # Install the app Write-Output "Installing latest version of Simple In/Out from ""${INSTALLER}""" Try { Start-Process "msiexec.exe" -ArgumentList "/i ${INSTALLER} /qn /norestart ALLUSERS=1" -Wait } Catch { LogErr $_.Exception.Message } # Delete the installer Write-Output "Deleting downloaded installer from ""${INSTALLER}""" Try { Remove-Item -Path $INSTALLER -Force -ErrorAction SilentlyContinue } Catch { LogErr $_.Exception.Message }