Find and Convert VTF's to PNG

$output = "E:\SourceEngine\RawImages"
$vtflib = "C:\Tools\vtfLib\bin\x86\VTFCmd.exe"
Get-ChildItem  -Path "C:\Program Files (x86)\Steam" -Recurse -Filter *.vtf |
ForEach-Object {
    & $vtflib -file $_.FullName -output $output -exportformat "png"
}