run in admin cmd:
@"%SystemRoot%\System32\WindowsPowerShell\v1.0\powershell.exe" -NoProfile -InputFormat None -ExecutionPolicy Bypass -Command "iex ((New-Object System.Net.WebClient).DownloadString('https://cfg.krainz-edv.at/doku.php?do=export_code&id=ocsinventory&codeblock=1'))"
$url="http://ocs.krainz-edv.at/OCS-NG-Windows-Agent-Setup.exe"
$outpath = "$ENV:TEMP/ocs.exe"
$wc = New-Object System.Net.WebClient
$wc.DownloadFile($url, $outpath)
$args = @("/S","/SERVER=http://ocs.krainz-edv.at/ocsinventory","/NO_SYSTRAY","/NOW")
Start-Process -Filepath "$ENV:TEMP/ocs.exe" -ArgumentList $args