I cannot rename a file anymore in FTP with .NET Framework 4.0. Since I recompiled my application, after the upload, when I try to rename the file, I get an error:

(553) File name not allowed

Nothing has changed on the server. I even tried that on a client server. It is the same result. The only factor is that I changed my exe on my local PC.

Here is the code:

            Try

                ' FTP setup
                loFtpWebRequest = System.Net.FtpWebRequest.Create(New Uri(lcURI))
                loFtpWebRequest.Credentials = New System.Net.NetworkCredential(cUsername, cPassword)
                loFtpWebRequest.Method = System.Net.WebRequestMethods.Ftp.Rename

                ' The new name
                loFtpWebRequest.RenameTo = lcURI2

                ' Rename the file
                loFtpWebRequest.GetResponse().Close()

                llSuccess = True
            Catch loError As Exception
                lError = True
                cError = cUnableToRenameTheFile + " " + lcURI + " " + cTo + " " + lcURI2 + "." + _
                 oApp.cCR + oApp.cCR + loError.Message
            End Try

The lcURI is like this:

ftp://something.myserver.com/directory/directory/Temp/Framework.dll

lcURI2 is like this:

directory/directory/Bin/Framework.dll