Popup erzeugen in Windows, dessen Inhalt nicht mitgeloggt wird

# title of toast message
$title = 'Test'  
# message of toast
$message = 'Meine Nachricht'  

# restart elevated if not
if(!(new-object System.Security.Principal.WindowsPrincipal([System.Security.Principal.WindowsIdentity]::GetCurrent())).IsInRole(544)){
    start powershell -Verb runas -ArgumentList '-File',$MyInvocation.MyCommand.Definition  
    exit
}
# create vbs wrapper for full silent operation
@"  
CreateObject("WScript.Shell").Run "powershell.exe -EP Bypass -NoProfile -C ""[Windows.UI.Notifications.ToastNotificationManager, Windows.UI.Notifications, ContentType = WindowsRuntime];`$xml = [xml]([Windows.UI.Notifications.ToastNotificationManager]::GetTemplateContent([Windows.UI.Notifications.ToastTemplateType]::ToastText02)).GetXML();`$xml.SelectSingleNode('/toast/visual/binding/text[@id=1]').InnerText = '$title';`$xml.SelectSingleNode('/toast/visual/binding/text[@id=2]').InnerText = '$message';`$cmds = `$xml.CreateElement('commands');`$cmd = `$xml.CreateElement('command');`$cmd.SetAttribute('id','dismiss');`$cmds.AppendChild(`$cmd);`$xml.DocumentElement.AppendChild(`$cmds);`$dom = New-Object Windows.Data.Xml.Dom.XmlDocument;`$dom.LoadXml(`$xml.OuterXml);[Windows.UI.Notifications.ToastNotificationManager]::CreateToastNotifier('PowerShell').Show((New-Object Windows.UI.Notifications.ToastNotification `$dom -Property @{Tag = 'PowerShell';Group = 'PowerShell';ExpirationTime = [DateTimeOffset]::Now.AddHours(24);Priority = 'High'})) """,0,false  
"@ | sc "C:\Users\Public\toast.vbs"  
# create scheduled task to run vbs interactive in "Users" Group context  
$task = Register-ScheduledTask -TaskName "ToastToAllUsers" -Action (New-ScheduledTaskAction -Execute "wscript" -Argument "C:\Users\Public\toast.vbs") -Principal (New-ScheduledTaskPrincipal -GroupId 'S-1-5-32-545')  
# start scheduled task
$task | Start-ScheduledTask
# remove scheduled task
$task | Unregister-ScheduledTask -Confirm:$false

# message to show
$message = 'Donec commodo eget felis sed vehicula. Suspendisse pretium ultrices quam in iaculis. Aliquam a vulputate nisl.'  

# restart elevated if not
if(!(new-object System.Security.Principal.WindowsPrincipal([System.Security.Principal.WindowsIdentity]::GetCurrent())).IsInRole(544)){
    start powershell -Verb runas -ArgumentList '-File',$MyInvocation.MyCommand.Definition  
    exit
}

# create vbs wrapper for silent operation
@"  
CreateObject("WScript.Shell").Run "powershell.exe -EP Bypass -NoProfile -C iex ([System.Text.Encoding]::UTF8.GetString([Convert]::FromBase64String('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')) + \""'$message'\"") """,0,false  
"@ | sc "C:\Users\Public\toast.vbs"  
# create scheduled task to run vbs interactive in "Users" Group context 
$task = Register-ScheduledTask -TaskName "ToastToAllUsers" -Action (New-ScheduledTaskAction -Execute "wscript" -Argument "C:\Users\Public\toast.vbs") -Principal (New-ScheduledTaskPrincipal -GroupId 'S-1-5-32-545')  
# start scheduled task
$task | Start-ScheduledTask
# remove scheduled task
$task | Unregister-ScheduledTask -Confirm:$false

Add-Type -A System.Windows.Forms
$form = New-Object System.Windows.Forms.Form -Property @{
    Size = '200,200'  
    WindowState = 'Maximized'  
    TopMost = $true
    BackColor = [System.Drawing.Color]::Blue
    ControlBox = $false
    FormBorderStyle ='None'  
}
$txtInfo = New-Object System.Windows.Forms.Label -Property @{
    Dock = [System.Windows.Forms.DockStyle]::Fill
    TextAlign = 'MiddleCenter'  
    Font = New-Object System.Drawing.Font("Calibri",25,[System.Drawing.FontStyle]::Regular)  
    Text = "Donec commodo eget felis sed vehicula. Suspendisse pretium ultrices quam in iaculis. Aliquam a vulputate nisl. Etiam quam nunc, dictum ac nulla vel, posuere hendrerit metus. Quisque ante lacus, adipiscing id elit vel, ornare consectetur nisi. Etiam pretium, sapien vitae lobortis tempor, nibh justo cursus orci, non dapibus magna sapien quis enim. Phasellus rutrum elit justo, id pellentesque magna tempus dapibus. Etiam sed augue eros. Cras nec varius eros. Aenean sodales tincidunt dolor. Nunc ac metus tristique, porttitor justo eu, luctus diam. Class aptent taciti sociosqu ad litora torquent per conubia nostra, per inceptos himenaeos. Ut egestas libero quis velit volutpat, at scelerisque mauris porttitor."  
    ForeColor = [System.Drawing.Color]::White
    Size = '200,200'  
}
$btn = New-Object System.Windows.Forms.Button -Property @{
    Size = '150,50'  
    Location = '0,0'  
    Text = 'OK'  
    Font = New-Object System.Drawing.Font("Calibri",15,[System.Drawing.FontStyle]::Bold)  
    ForeColor = [System.Drawing.Color]::White
    BackColor = [System.Drawing.Color]::Green
}
$form.add_Load({
    $btn.Left = ([System.Windows.Forms.Screen]::PrimaryScreen.Bounds.Width / 2) - ($btn.Width/2)
    $btn.Top = [System.Windows.Forms.Screen]::PrimaryScreen.Bounds.Height - 200
})
$btn.add_Click({
    $form.Close()
})
$form.Controls.Add($btn)
$form.Controls.Add($txtInfo)

$form.ShowDialog() | out-null