Windows Firewall besser umfangreicher einsetzen

$computers = Get-ADComputer -Filter * | Select-Object -ExpandProperty Name
$results = @()
foreach ($computer in $computers) {
    $firewallRules = Invoke-Command -ComputerName $computer -ScriptBlock {
         Get-NetFirewallRule | Where-Object {$_.Enabled -eq 'True'} | Select-Object DisplayName, Enabled, Description  
    }
    foreach ($rule in $firewallRules) {
        $result = [PSCustomObject]@{
            'ComputerName' = $computer  
            'DisplayName' = $rule.DisplayName  
            'Enabled' = $rule.Enabled  
            'Description' = $rule.Description  
        }
        $results += $result
    }
}
$Datum=Get-Date -Format "yyyyMMdd"  
$Dateiname = "Firewall_$Datum"  
$results | Export-Csv  -Path C:\Users\%username%\Dokumente\$Dateiname.csv -Delimiter ';' -NoTypeInformation