If UAC is enabled on the computer, My way work:
If Not WScript.Arguments.Named.Exists("elevate") Then CreateObject("Shell.Application").ShellExecute WScript.FullName _ , """" & WScript.ScriptFullName & """ /elevate", "", "runas", 1 WScript.Quit End If

If UAC is enabled on the computer, something like this should work:
If Not WScript.Arguments.Named.Exists("elevate") Then CreateObject("Shell.Application").ShellExecute WScript.FullName _ , """" & WScript.ScriptFullName & """ /elevate", "", "runas", 1 WScript.Quit End If
'actual code