Deleting old files except four.

Hello,

I wan to erase files older than 30 days except four in my windows 2003 server. I find the following script in other post, but i don't now how to modify it for do file exceptions.

Const ForAppending = 8
strSourceFolder = "C:\Testing"
strLog = "C:\FilesRemoved.Log"
 
Dim objFSO : Set objFSO = CreateObject("Scripting.FileSystemObject")
Dim objOutputFile : Set objOutputFile = objFSO.CreateTextFile(Replace(strLog, ".Log", Month(Date) & Day(Date) & Year(Date) & "_.Log"))
 
With objOutputFile
  .WriteLine "==========================="
  .WriteLine "Removal summary for " & Date
  .WriteLine "=-=-=-=-=-=-=-=-=-=-=-=-=-="
  .WriteLine
End With
 
'intDel is the number of days old you want to check for.  I set it to 1 for testing.
intDel = 30
dtOld = DateAdd("d", -intDel, Date)
 
Set objFolders = objFSO.GetFolder(strSourceFolder)
'Get the files in the current folder
 
For Each fil In objFolders.Files
  'If a file exists that hasn't been accessed in intDel days or more, delete it
  If DateDiff("d", fil.DateCreated, dtOld) >= intDel Then
    objOutputFile.WriteLine fil.Path & " was removed at " & Now
    objFSO.DeleteFile fil.Path
  End If
Next
 
With objOutputFile
  .WriteLine
  .WriteLine "Process completed at " & Now
  .WriteLine "==========================="
  .Close
End With
 
Set objOutputFile = Nothing
Set objFSO = Nothing
wscript.quit

Thanks for your help.