Getting Win32_Service security descriptor using VB

I am using VbScript for retrieving the securitydescriptor of a Win32_Service. I am using the following code:

 SE_DACL_PRESENT = &h4
 ACCESS_ALLOWED_ACE_TYPE = &h0
 ACCESS_DENIED_ACE_TYPE  = &h1

 strComputer = "."
 Set objWMIService = GetObject("winmgmts:" _
  & "{impersonationLevel=impersonate, (Security)}!\\" & strComputer & "\root\cimv2")

 Set colInstalledPrinters =  objWMIService.ExecQuery _
  ("Select * from Win32_Service")

 For Each objPrinter in colInstalledPrinters
    Wscript.Echo "Name: " & objPrinter.Name 
 ' Get security descriptor for printer
  Return = objPrinter.GetSecurityDescriptor( objSD )
  If ( return <> 0 ) Then
  WScript.Echo "Could not get security descriptor: " & Return
  wscript.Quit Return
  End If
 ' Extract the security descriptor flags
  intControlFlags = objSD.ControlFlags
  If intControlFlags AND SE_DACL_PRESENT Then
 ' Get the ACE entries from security descriptor
   colACEs = objSD.DACL
  For Each objACE in colACEs
 ' Get all the trustees and determine which have access to printer
   WScript.Echo objACE.Trustee.Domain & "\" & objACE.Trustee.Name
   If objACE.AceType = ACCESS_ALLOWED_ACE_TYPE Then
    WScript.Echo vbTab & "User has access to printer"
   ElseIf objACE.AceType = ACCESS_DENIED_ACE_TYPE Then
    WScript.Echo vbTab & "User does not have access to the printer"
   End If
  Next
  Else
  WScript.Echo "No DACL found in security descriptor"
 End If
 Next

However, every time I run it I get the message saying the resulting code is -2147023582 something, rather than the error codes defined in the manual.

Anyone got any ideas? I am using Windows 7 professional 64-bit.

The number is -2147023582. Could it be some sort of 64-bit issue? doesn't that look like a unsigned integer stored as a signed integer?

(PS: don't mind the variablenames... I ripped an example off of msdn).

The error code -2147023582 (0x80070522) means "A required privilege is not held by the client." Most likely, the Security privilege in the WMI moniker is not enough, and you need to run your script as Administrator. (At least, your script works fine for me on 64-bit Vista when run as admin.)