Download a file on a UNIX FTP Server with VB NET

Hye, I m trying to download a file on a UNIX FTP server on a VB.NET application, but I always get the message : "The remote server returned an error : (503) bad sequence of commands." I am actually using this piece code: Dim downloadRequest As FtpWebRequest = CType(WebRequest.Create(myUri), FtpWebRequest) downloadRequest.UsePassive = False Dim downloadResponse As FtpWebResponse = CType(downloadRequest.GetResponse, FtpWebResponse) myResponseStream = downloadResponse.GetResponseStream() And its raising the exception when I launch de GetResponseStream() method. Does anyone know why it's not working with a UNIX server while it's work on a WINDOWS FTP server ?

Reason for ur error: This response indicates that a remote SMTP Server or client is attempting to conduct a series of SMTP transactions out of sequence. Alternate Code: ========= <PRE lang=vbnet>'Values to use Const localFile As String = "C:\myfile.bin" Const remoteFile As String = "/pub/myftpfile.bin" Const host As String = "ftp://ftp.myhost.com" Const username As String = "myuserid" Const password As String = "mypassword" '1. Create a request: must be in ftp://hostname format, ' not just ftp.myhost.com Dim URI As String = host & remoteFile Dim ftp As System.Net.FtpWebRequest = _ CType(FtpWebRequest.Create(URI), FtpWebRequest) '2. Set credentials ftp.Credentials = New _ System.Net.NetworkCredential(username, password) '3. Settings and action ftp.KeepAlive = False 'we want a binary transfer, not textual data ftp.UseBinary = True 'Define the action required (in this case, download a file) ftp.Method = System.Net.WebRequestMethods.Ftp.DownloadFile '4. If we were using a method that uploads data e.g. UploadFile ' we would open the ftp.GetRequestStream here an send the data '5. Get the response to the Ftp request and the associated stream Using response As System.Net.FtpWebResponse = _ CType(ftp.GetResponse, System.Net.FtpWebResponse) Using responseStream As IO.Stream = response.GetResponseStream 'loop to read & write to file Using fs As New IO.FileStream(localFile, IO.FileMode.Create) Dim buffer(2047) As Byte Dim read As Integer = 0 Do read = responseStream.Read(buffer, 0, buffer.Length) fs.Write(buffer, 0, read) Loop Until read = 0 'see Note(1) responseStream.Close() fs.Flush() fs.Close() End Using responseStream.Close() End Using response.Close() End Using '6. Done! the Close happens because ftp goes out of scope ' There is no .Close or .Dispose for FtpWebRequest</PRE> http://www.codeproject.com/vb/net/FtpClient.asp HTH

Thanks for this one. These two lines saved me: ftp.KeepAlive = False ftp.Method = System.Net.WebRequestMethods.Ftp.DownloadFile And now it works fine. Thanks.