You could first enumerate the installed network printers and remove them one by one.
Tested it and it is d#mn fast. Maybe something should be changed if you have local printers installed but I can't test this right now because I have no local printers connected to my system.

 Code:
Break on

$Index = 0

While @ERROR = 0
	$printer = EnumKey("HKEY_CURRENT_USER\Printers\Connections\", $Index)
	If $printer <> ""
		$printer = Join(Split ($printer, ","),"\")
		$rc = DelPrinterConnection($printer)
	EndIf
	
	$Index = $Index + 1
Loop
_________________________
Mart

- Chuck Norris once sold ebay to ebay on ebay.