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

What about checking for "\\computername\Admin$\system32"?

function IsLoggedInAsAdmin()
    isAdmin = false
    set shell = CreateObject("WScript.Shell")
    computername = WshShell.ExpandEnvironmentStrings("%computername%")
    strAdmin = "\\" & computername & "\Admin$\System32"

    isAdmin = false

    set fso = CreateObject("Scripting.FileSystemObject")

    if fso.FolderExists(strAdmin) then
        isAdmin = true
    end if

    IsLoggedInAsAdmin = isAdmin
end function