FTP Upload problem

I want to upload files from particular location.
I got problem with GetRequestStream() function.

Here is the code:

Code:

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Dim path() As String = Directory.GetFiles("C:\files\") 'I tried and with("C:/files/")
For Each files As String In path
                    Dim ftprequest = DirectCast(WebRequest.Create("ftp://" & FTPHost & "/" & files), FtpWebRequest)
                    ftprequest.EnableSsl = True
                    ftprequest.Credentials = New NetworkCredential(user, password)
                    ftprequest.Method = WebRequestMethods.Ftp.UploadFile
                    Dim file() As Byte = My.Computer.FileSystem.ReadAllBytes(files)
                    Dim ftpstream As Stream = _
                    ftprequest.GetRequestStream()
                    ftpstream.Write(file, 0, file.Length)
                    ftpstream.Close()
                    ftpstream.Dispose()
                    'My.Computer.Network.UploadFile(files, "ftp://" & FTPHost & "/" & files, user, password, False, 50000)
                Next

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Error message is:

Code:

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The remote server returned an error: (500) Syntax error, command unrecognized.

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When I tried with My.Computer.Network.UploadFile(...)
I got this error:

Code:

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The remote server returned an error: (550) File unavailable (e.g., file not found, no access).

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Bump!