title: How to create tar.gz file in C#
body: <p><br>
  I have tried <a href="http://sevenziplib.codeplex.com/" rel="noreferrer">SevenZipLib</a> and <a href="https://sevenzipsharp.codeplex.com/" rel="noreferrer">SevenZipSharp</a>, but without success.
  Can someone give me a working example of archiving a text file to tar.gz, using any free library? <br>
  I know it's not the best way to go for zipping, but it's a requirement I have.</p>