XML Datei in Powershell einlesen für Button Beschriftung

<?xml version="1.0" encoding="utf-8"?>  
<config>
    <btn name="Konsole">  
        <path>C:\Windows\system32\cmd.exe</path>
        <args>/k echo Das ist ein Test</args>
    </btn>
    <btn name="Rechner">  
        <path>C:\Windows\system32\calc.exe</path>
        <args></args>
    </btn>
</config>

# config xml file
$config = "D:\myconfig.xml"  

# hide powershell console
Add-Type –MemberDefinition '[DllImport("user32.dll")]public static extern bool ShowWindow(IntPtr hWnd, int nCmdShow);' -name Window -namespace W32  
[void][W32.Window]::ShowWindow((Get-Process -id $pid).MainWindowHandle, 0) 

function GenerateForm {
    param(
        [parameter(mandatory=$true)]$apps
    )
    # Load Assembly
    Add-Type -A System.Windows.Forms
    # Form object
    $form1 = New-Object System.Windows.Forms.Form -Property @{
        ClientSize = '400,300'  
        Text = "App-Starter"  
    }
    # list view object
    $lv = New-Object System.Windows.Forms.ListView -Property @{
        MultiSelect= $false
        Dock = 5
        View = 'LargeIcon'  
        # double click event
        add_DoubleClick = {
            $lv.SelectedItems | %{
                $params = @{FilePath = $_.Name}
                if ($_.Tag){$params.Argumentlist = $_.Tag}
                start @params
            }
        }
    }
    # add imagelist
    $imagelist = New-Object System.Windows.Forms.ImageList

    # add icons of apps to imagelist and add apps to listview
    $apps | %{$cnt=0}{
        if (Test-Path $_.path){
            $imagelist.Images.Add([System.Drawing.Icon]::ExtractAssociatedIcon($_.path))
            $itm = $lv.Items.Add($_.path,$_.name,$cnt)
            $itm.Tag = $_.args
            $cnt++
        }else{
            [System.Windows.Forms.MessageBox]::Show("App with path '$($_.path)' does not exist!")  
        }
    }
    # assign imagelist to listview
    $lv.LargeImageList = $imagelist
    # add listview to form
    $form1.Controls.Add($lv)
    # show form
    [void]$form1.ShowDialog()

}

# call form function with apps as Parameter
GenerateForm -apps ([xml](gc $config)).config.btn