Start-Process mit -RedirectStandardOutput in der Windows Aufgabenplanung

$vBoxManage = "C:\Program Files\Oracle\VirtualBox\VBoxManage.exe"  
$vmNames = @()

$processInfo = New-Object System.Diagnostics.ProcessStartInfo
$processInfo.FileName = $vBoxManage
# $processInfo.RedirectStandardError = $true
$processInfo.RedirectStandardOutput = $true
$processInfo.UseShellExecute = $false
$processInfo.Arguments = "list runningvms"  
$process = New-Object System.Diagnostics.Process
$process.StartInfo = $processInfo
$process.Start() | Out-Null
$process.WaitForExit()
$processOutput = $process.StandardOutput.ReadToEnd()
# $processError = $process.StandardError.ReadToEnd()
# "Ouput: $processOutput" | Out-File -Encoding "ASCII" -Append $logFile  
# "Error: $processError" | Out-File -Encoding "ASCII" -Append $logFile  
# "Exit-Code: " + $process.ExitCode | Out-File -Encoding "ASCII" -Append $logFile  
while (($startIndex = $processOutput.IndexOf('"')) -ge 0){  
	$processOutput = $processOutput.Substring($startIndex + 1)
	$endIndex = $processOutput.IndexOf('"')  
	$vmName = $processOutput.Substring(0, $endIndex)
	$vmNames += $vmName
	$processOutput = $processOutput.Substring($endIndex + 1)
}
foreach ($runningVM in $vmNames){
 saps $vBoxManage -Argumentlist ('controlvm "' + $runningVM + '" acpipowerbutton') -Wait -NoNewWindow  
 Sleep -s 60
}