Silent Setup mittels Powershell ausführen

Service1
Service2
Service3
Service4
Service5
Service6
Service7
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Service 19

 #Setup auf dem Server starten (Silent, Checksum nicht checken, Zielverzeichnis)
    [String]$PathOnServer = -join("D:", $LocalPath)  

[String]$arguments = -join(" /S /NCRC /INSTDIR=`"", $PathOnServer, "`"", " /sil /<Service1> /<Service4> /<Service usw>")  
[String]$FullCommand = -join($PathOnServer, $SetupFilename, $arguments)

Write-Host (-join("          Starte ", $FullCommand))  

    #Opens a batch file process on Remote Computer using Invoke-WMIMethod
    $process = Invoke-WMIMethod -Class Win32_Process -Name Create -Computername $ServerName -ArgumentList $FullCommand
    if ($process.ReturnValue -eq 0)
    {
        $processId = $process.ProcessId

        #Installation abwarten und maximal 5 Minuten warten
        $runningCheck = { Get-WmiObject -Class Win32_Process -Filter "ProcessId='$processId'" -ComputerName $ServerName -ErrorAction SilentlyContinue }  
        while ($null -ne (& $runningCheck))
        {
            Start-Sleep -m 500
        }        

        #Zur Sicherheit noch 1 Sekunde warten
        Start-Sleep -s 1
    }
    else
    {
        Write-Host ("Installieren von", $SetupFilename, "auf", $ServerName, "ist fehlgeschlagen.") -ForegroundColor "red"  
        $global:FailedInstalls += $ServerName
    }

    checkReturnCode -join("Installieren auf ", $ServerName, " ist fehlgeschlagen.") $process.ExitCode  

    #Setup-File löschen
    deleteFile $TargetFile

    # Aufräumen
    silentDeleteFile "err.txt"  
    silentDeleteFile "out.txt"  
}