' Back Up and Clear an Event Log
strComputer = "."
Set objWMIService = GetObject("winmgmts:" _
& "{impersonationLevel=impersonate,(Backup)}!\\" & _
strComputer & "\root\cimv2")
Set colLogFiles = objWMIService.ExecQuery _
("Select * from Win32_NTEventLogFile where LogFileName='Application'")
For Each objLogfile in colLogFiles
errBackupLog = objLogFile.BackupEventLog("c:\scripts\application.evt")
If errBackupLog <> 0 Then
Wscript.Echo "The Application event log could not be backed up."
Else
objLogFile.ClearEventLog()
End If
Next