title: Impersonation of active directory user in vb.net
body: <p>I've never programmed the active directory but I would like to do the following:</p>
  
  <ol>
  <li><p>On the asp.net site, login using a valid active directory username and password.If the login is valid, redirect to a page to do some actions.</p></li>
  <li><p>In a related task, but not part of part 1, unlock an account or change the password of an active directory account.</p></li>
  </ol>
  
  <p>Thanks!</p>