Setup a FTP server on Windows Server 2008 R2

Open Server Manager, and add new Role to it.

Add new role into server manager

In Add Roles Wizard, tick Web Server (IIS).

Enable IIS on the server

In Role Services, tick everything under FTP Server section. Follow the wizard to the end to install all the features required.

Enable FTP on the server

Open IIS, tick Add FTP Site when right-click on Sites to add a new FTP site.

Add FTP site

Fill in the desirable site name and file location.

Configure FTP site details

Choose All Unassigned for IP Address, and do not SSL if you just want a simple FTP site.

Configure FTP site IP

Choose Basic Authentication and allow All Users to Read and Write. And carry on finishing the wizard.

Configure FTP site authentication

Open Windows Firewall with Advanced Security to add a new rule to the FTP site.

Configure firewall

Specify a port for FTP communication, and leave the rest as default.

Specify firewall port

To verify the FTP is working, navigate to ftp://<yourftpsiteaddress> in your browser.

Consume FTP programmatically

//using System;
//using System.IO;
//using System.Net;
//using System.Text;

void Main()
{
   ListFtpServerDirectoryContents();
   UploadToFtpServer();
   ListFtpServerDirectoryContents();
   DownloadFromFtpServer();
}

public void ListFtpServerDirectoryContents()
{
   var request = (FtpWebRequest)WebRequest.Create("ftp://ftpserveraddresss/");
   request.Method = WebRequestMethods.Ftp.ListDirectoryDetails;

   request.Credentials = new NetworkCredential("myusername", "mypassword");

   var response = (FtpWebResponse)request.GetResponse();

   var responseStream = response.GetResponseStream();
   var reader = new StreamReader(responseStream);
   Console.WriteLine(reader.ReadToEnd());

   Console.WriteLine("Directory List Complete, status {0}", response.StatusDescription);

   reader.Close();
   response.Close();
}

public void UploadToFtpServer()
{
   var request = (FtpWebRequest)WebRequest.Create("ftp://ftpserveraddresss/targetfilename");
   request.Method = WebRequestMethods.Ftp.UploadFile;

   request.Credentials = new NetworkCredential("myusername", "mypassword");

   var sourceStream = new StreamReader("filepathhere");
   var fileContents = Encoding.UTF8.GetBytes(sourceStream.ReadToEnd());
   sourceStream.Close();
   request.ContentLength = fileContents.Length;

   Stream requestStream = request.GetRequestStream();
   requestStream.Write(fileContents, 0, fileContents.Length);
   requestStream.Close();

   var response = (FtpWebResponse)request.GetResponse();

   Console.WriteLine("Upload File Complete, status {0}", response.StatusDescription);

   response.Close();
}

public void DownloadFromFtpServer()
{
   var request = (FtpWebRequest)WebRequest.Create("ftp://ftpserveraddresss/targetfilename");
   request.Method = WebRequestMethods.Ftp.DownloadFile;

   request.Credentials = new NetworkCredential("myusername", "mypassword");

   var response = (FtpWebResponse)request.GetResponse();

   var responseStream = response.GetResponseStream();
   var reader = new StreamReader(responseStream);
   Console.WriteLine(reader.ReadToEnd());

   Console.WriteLine("Download Complete, status {0}", response.StatusDescription);

   reader.Close();
   response.Close();
}