title: C#.NET - Compress Encrypted Files to 7z Format
body: <p>I need to compress folder with files in <code>.7z</code> format.</p>
  
  <p>I use SevenZip for it with class <code>SevenZipCompressor.cs</code>.
  There are a method <code>CompressFilesEncrypted()</code>. How to compress folder with files?</p>
  
  <p>Any help is appreciated!</p>