Wie lege ich einen lokalen Benuterz mithilfe eines Powersehll Skript an?

Hierzu möchte ich ein Formular vwerdenden.

Folgendes habe ich erstellt:

Add-Type -AssemblyName System.Windows.Forms
Add-Type -AssemblyName System.Drawing
$form = New-Object System.Windows.Forms.Form
$form.Text = 'lokaler Benutzer'
$form.Size = New-Object System.Drawing.Size(300,200)
$form.StartPosition = 'CenterScreen'
$okButton = New-Object System.Windows.Forms.Button
$okButton.Location = New-Object System.Drawing.Point(75,120)
$okButton.Size = New-Object System.Drawing.Size(75,23)
$okButton.Text = 'OK'
$okButton.DialogResult = [System.Windows.Forms.DialogResult]::OK
$form.AcceptButton = $okButton
$form.Controls.Add($okButton)
$cancelButton = New-Object System.Windows.Forms.Button
$cancelButton.Location = New-Object System.Drawing.Point(150,120)
$cancelButton.Size = New-Object System.Drawing.Size(75,23)
$cancelButton.Text = 'Cancel'
$cancelButton.DialogResult = [System.Windows.Forms.DialogResult]::Cancel
$form.CancelButton = $cancelButton
$form.Controls.Add($cancelButton)
$label = New-Object System.Windows.Forms.Label
$label.Location = New-Object System.Drawing.Point(10,20)
$label.Size = New-Object System.Drawing.Size(280,20)
$label.Text = 'Benutzername:'
$form.Controls.Add($label)
$label = New-Object System.Windows.Forms.Label
$label.Location = New-Object System.Drawing.Point(10,70)
$label.Size = New-Object System.Drawing.Size(280,20)
$label.Text = 'vollständiger Name:'
$form.Controls.Add($label)
$Benutzername = New-Object System.Windows.Forms.TextBox
$Benutzername.Location = New-Object System.Drawing.Point(10,40)
$Benutzername.Size = New-Object System.Drawing.Size(260,20)
$form.Controls.Add($Benutzername)
$Name = New-Object System.Windows.Forms.TextBox
$Name.Location = New-Object System.Drawing.Point(10,90)
$Name.Size = New-Object System.Drawing.Size(260,20)
$form.Controls.Add($Name)
$form.Topmost = $true
$form.Add_Shown({$textBox.Select()})
$result = $form.ShowDialog()
if ($result -eq [System.Windows.Forms.DialogResult]::OK)
{
   $x = $textBox.Text
   $x
}
New-LocalUser $Benutzername  -FullName $Name
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