title: Compress a file with RAR
body: <p>I have a text file that I want to compress after it gets an specified size. I've already seen <code>GZipStream</code> which works great, but RAR compression is much better.<br><br>
  I've been looking for a library that can <strong>compress</strong> a file with RAR (I really don't care about extracting or uncompressing), but I couldn't find one yet.</p>