Best way to know if a user has administrative privileges from a VBScript

Question

I need to check whether the user executing the script has administrative privileges on the machine.

I have specified the user executing the script because the script

Answer 1

Using "localhost" instead of the real hostname increases the script runtime about 10x!
My final code is:

' get_admin_status.vbs
Option Explicit

Dim oGroup:   Set oGroup   = GetObject("WinNT://localhost/Administrators,group")
Dim oNetwork: Set oNetwork = CreateObject("Wscript.Network")

Dim sSearchPattern: sSearchPattern = "WinNT://" & oNetwork.UserDomain & "/" & oNetwork.UserName

Dim sMember
For Each sMember In oGroup.Members
  If sMember.adsPath = sSearchPattern Then
    ' Found...
    Call WScript.Quit(0)
  End If
Next

' Not found...
Call WScript.Quit(1)

This script returns exit code 0 if the current user is a local admin.
Usage: cscript.exe get_admin_status.vbs