Copy this code into notepad and save as DeleteOldImages.vbs
'******************* Start of Code *************************
Option Explicit
On Error Resume Next
Dim oFSO, oFolder, sDirectoryPath
Dim oFileCollection, oFile, sDir
Dim iDaysOld
' Specify Directory Path From Where You want to clear the old files
sDirectoryPath = "C:\Users\mike\Desktop\Test"
' Specify Number of Days Old File to Delete
iDaysOld = 15
Set oFSO = CreateObject("Scripting.FileSystemObject")
Set oFolder = oFSO.GetFolder(sDirectoryPath)
Set oFileCollection = oFolder.Files
For each oFile in oFileCollection
'This section will filter the text file as i have used for for test
'Specify the Extension of file that you want to delete
'and the number with Number of character in the file extension
If LCase(Right(Cstr(oFile.Name), 3)) = "png"
OR LCase(Right(Cstr(oFile.Name), 3)) = "gif"
OR LCase(Right(Cstr(oFile.Name), 3)) = "jpg" Then
If oFile.DateLastModified < (Date() - iDaysOld) Then
oFile.Delete(True)
End If
End If
Next
Set oFSO = Nothing
Set oFolder = Nothing
Set oFileCollection = Nothing
Set oFile = Nothing
'************************ End of Code ********************
Credit for this script - "Sidd"
http://www.symantec.com/connect/downloads/vbscript-delete-old-files