Automate switch config backup

I have a list of switches that I want to copy the config from.  I have a script that I can copy the config from one of them.  Can you help me modify this for many switches? They are all the same model.  This script connects via telnet and saves the config to a tftp server.

<job>
<script language="VBScript">
Option Explicit
On Error Resume Next
Dim WshShell
set WshShell=CreateObject("WScript.Shell")
WshShell.run "cmd.exe"
WScript.Sleep 1000
WshShell.SendKeys "telnet 172.25.209.254 23"
WshShell.SendKeys ("{Enter}")
WScript.Sleep 1000
WshShell.SendKeys ("^Y")
WScript.Sleep 1000
WshShell.SendKeys ("EN")
WScript.Sleep 1000
WshShell.SendKeys ("{Enter}")
WScript.Sleep 3000
WshShell.SendKeys ("copy running-config tftp address 172.24.109.124 filename Backup2.txt")
WScript.Sleep 1000
WshShell.SendKeys ("{Enter}")
WScript.Sleep 1000
WshShell.SendKeys ("logout")
WScript.Sleep 1000
WshShell.SendKeys ("{Enter}")
WScript.Quit 
</script>
</job>

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