strSubNet = "192.168.1."
Set objFSO= CreateObject("Scripting.FileSystemObject")
Set objTS = objfso.CreateTextFile("e:/PingResult.txt")

For i = 1 To 254
strComputer = strSubNet & i
blnResult = Ping(strComputer)
If blnResult = True Then
objTS.WriteLine "Ping " & strComputer & " success!"
End If
Next

objTS.Close
WScript.Echo "Done!"

Function Ping(strComputer)
Set objWMIService = GetObject("winmgmts://./root/cimv2")
Set colItems = objWMIService.ExecQuery("Select * From Win32_PingStatus Where Address='" & strComputer & "'")
For Each objItem In colItems
Select case objItem.StatusCode
Case 0
Ping = True
Case Else
Ping = False
End select
Exit For
Next
End Function