Datamining PST Files using Microsoft.Office.Interop.Outlook

I was wondering how to datamine a pst file beyond it's primary folders to see if an empty folder has content in a subfolder and add it to an existing psobject?

Cheers,

B.

$results = New-Object System.Collections.ArrayList # Empty Array
$null = Add-type -assembly Microsoft.Office.Interop.Outlook
$outlook = new-object -comobject outlook.application
$namespace = $outlook.GetNameSpace('MAPI')
$pstpath = "d:\sample.pst"
$namespace.AddStore($pstpath)
$PST = $namespace.Stores | ? {$_.FilePath -eq $pstpath}
$PSTRoot = $PST.GetRootFolder()
$PSTName = $PST.Displayname

Foreach ($folders in $PSTRoot.Folders) {

	$x = $folders.Name
	$y = $folders.FolderPath
	$z = $folders.Items.Count

		$Object = New-Object PSObject
			$Object | Add-Member -Name 'Name' -MemberType Noteproperty -Value $x
			$Object | Add-Member -Name 'Path' -MemberType Noteproperty -Value $y
			$Object | Add-Member -Name 'Items' -MemberType Noteproperty -Value $z
		$results += $object
	}
$results | Format-Table 'Name','Path','Items' -Wrap -AutoSize | Out-Default
$results = $NULL