Set colMonitoredEvents = objWMIService.ExecNotificationQuery _ ("SELECT * FROM __InstanceModificationEvent WITHIN 10 WHERE " _ & "TargetInstance ISA 'CIM_DataFile' and " _ & "TargetInstance.Name='c:\\scripts\\index.vbs'")
Do Set objLatestEvent = colMonitoredEvents.NextEvent Wscript.Echo "File: " & objLatestEvent.TargetInstance.Name Wscript.Echo "New size: " & objLatestEvent.TargetInstance.FileSize Wscript.Echo "Old size: " & objLatestEvent.PreviousInstance.FileSize Loop