xaml2.ps1

function main{
	Add-Type -AssemblyName presentationframework
	$xaml = [xml]@"
	<Window
	    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
	    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
	    x:Name="Window"
	    Title="MainWindow"
	    Width="640" Height="480">
	    <Grid x:Name="LayoutRoot">
	    <Border>
	    <Image Source="$(imageUrl)" Stretch="Uniform"/>
	    </Border>
	    </Grid>
	</Window>
"@
	$reader = New-Object System.Xml.XmlNodeReader $xaml
	$form = [Windows.Markup.XamlReader]::Load($reader)
	$form.ShowDialog()
}

function imageUrl{
    $img_list = ([xml]$(invoke-webrequest http://pics.mytrapster.com/yvonne-list.php).Content).images.image
    return $img_list[(Get-Random -Minimum 0 -Maximum ($img_list.Length - 1))].full
}

. main