title: C# - Download files from FTP which have higher last-modified date
body: <p>I have an FTP server with some files. I have the same files in in a local directory (in <code>C:\</code>).</p>
  
  <p>When I'll run the program, I'd like it searches all files in the FTP server that have a last-modified timestamp later than the same file (equal name) in local directory and download all files founded.</p>
  
  <p>Can someone give me a help or a tip, please? I'll appreciate all answers!</p>