FTP: rename files after mget

[mydisney]

I'm doing an ftp and need to rename files that I have selected in my ftp. I am using rename and selecting all files with a specific extension. This does not work. If I specify the exact file name and extension it works. Since I may select multiple file to be ftp'ed I need to do a mass rename for all files.

Set objMyFile = objFSO.CreateTextFile(strFTPScriptFileName, True)
objMyFile.WriteLine ("open " & strFTPServerName)
objMyFile.WriteLine (strLoginID)
objMyFile.WriteLine (strPassword)
objMyFile.WriteLine ("cd " & strFTPServerFolder)
objMyFile.WriteLine ("bin")
objMyFile.WriteLine ("lcd " & strLocalFolderName)
objMyFile.WriteLine ("prompt")
objMyFile.WriteLine ("mget " & strFilePut)
objMyFile.Writeline ("rename " & ".bak" & " " & ".sav")
objMyFile.WriteLine ("disconnect")
objMyFile.WriteLine ("bye")
objMyFile.Close