Faire un Ping avec WMI Win32_PingStatus

Bien souvent en erreur car toutes les erreurs ne sont pas reconnu, avec ce script tout fonctionne bien

'http://technet.microsoft.com/en-us/library/ee692852.aspx
msgbox PingStatus("Google.com")
msgbox PingStatus("UnSiteQuiExistePas.com")

Function PingStatus(strComputer)

    On Error Resume Next
    strWorkstation = "."
    Set objWMIService = GetObject("winmgmts:{impersonationLevel=impersonate}!\\" & strWorkstation & "\root\cimv2")
    Set colPings = objWMIService.ExecQuery("SELECT * FROM Win32_PingStatus WHERE Address = '" & strComputer & "'")
    For Each objPing in colPings
        Select Case objPing.StatusCode
            Case 0 PingStatus = "Success"
            Case 11001 PingStatus = "Status code 11001 - Buffer Too Small"
            Case 11002 PingStatus = "Status code 11002 - Destination Net Unreachable"
            Case 11003 PingStatus = "Status code 11003 - Destination Host Unreachable"
            Case 11004 PingStatus = _
              "Status code 11004 - Destination Protocol Unreachable"
            Case 11005 PingStatus = "Status code 11005 - Destination Port Unreachable"
            Case 11006 PingStatus = "Status code 11006 - No Resources"
            Case 11007 PingStatus = "Status code 11007 - Bad Option"
            Case 11008 PingStatus = "Status code 11008 - Hardware Error"
            Case 11009 PingStatus = "Status code 11009 - Packet Too Big"
            Case 11010 PingStatus = "Status code 11010 - Request Timed Out"
            Case 11011 PingStatus = "Status code 11011 - Bad Request"
            Case 11012 PingStatus = "Status code 11012 - Bad Route"
            Case 11013 PingStatus = "Status code 11013 - TimeToLive Expired Transit"
            Case 11014 PingStatus = _
              "Status code 11014 - TimeToLive Expired Reassembly"
            Case 11015 PingStatus = "Status code 11015 - Parameter Problem"
            Case 11016 PingStatus = "Status code 11016 - Source Quench"
            Case 11017 PingStatus = "Status code 11017 - Option Too Big"
            Case 11018 PingStatus = "Status code 11018 - Bad Destination"
            Case 11032 PingStatus = "Status code 11032 - Negotiating IPSEC"
            Case 11050 PingStatus = "Status code 11050 - General Failure"
            Case Else PingStatus = "Status code " & objPing.StatusCode & _
               " - Unable to determine cause of failure."
        End Select
    Next

End Function