how to download ftp files to client directory

Question

I have a webproject  that run on hosting company , I need to download ftp files to client directory ,my sample code like below ;

 

I think path isn't correct , How CAN I do . 

 

string ftp = "ftp://ftp.adress.com/";

string filepath = "d:\\LEM";

FtpWebRequest reqFTP;

reqFTP = (FtpWebRequest)FtpWebRequest.Create(new Uri(ftp+fileName));

reqFTP.Credentials = new NetworkCredential("username","password");

reqFTP.KeepAlive = false;

reqFTP.Method = WebRequestMethods.Ftp.DownloadFile;

reqFTP.UseBinary = true;

reqFTP.Proxy = null;

reqFTP.UsePassive = false;

FtpWebResponse response = (FtpWebResponse)reqFTP.GetResponse();

Stream responseStream = response.GetResponseStream();

//string filePath = (Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.Desktop), fileName));

FileStream writeStream = new FileStream(filepath + "\\" + fileName, FileMode.Create);

int Length = 2048;

Byte[] buffer = new Byte[Length];

int bytesRead = responseStream.Read(buffer, 0, Length);

while (bytesRead > 0)

{

writeStream.Write(buffer, 0, bytesRead);

bytesRead = responseStream.Read(buffer, 0, Length);

}

writeStream.Close();

response.Close();

}