title: Security.Principal and Security.Permissions Samples
body: <p>Where I can Find some Example about <code>Security.Principal</code> and <code>Security.Permissions</code>? </p>
  
  <p>I want to develop a Winform login form and Webform login page and manage their security.I want to know how and how much this 2 namespaces help me.</p>
  
  <p>thanks</p>