title: Load passworded word document in richtextbox
body: <p>I opened word document in richtextbox using</p>
  
  <pre><code>richTextBoxEx1.LoadFile(@"c:\3.docx", RichTextBoxStreamType.PlainText);
  </code></pre>
  
  <p>But how to open passworded word document ?
  How to bypass the password to richtextbox ?</p>