title: How to retrieve DirectoryEntry from a DirectoryEntry and a DN
body: <p>I have a <code>DirectoryEntry</code> object representing a user.  From the <code>DirectoryEntry.Properties</code> collection, I am retrieving the <code>"manager"</code> property, which will give me a Distinguished Name ("DN") value for the user's manager.</p>
  
  <p>Can I retrieve a <code>DirectoryEntry</code> object for the manager from just these two objects?  If so, how?</p>
  
  <p>I'm envisioning something like <code>DirectoryEntry.GetEntryFromDN(dnManager);</code>, but I cannot find a similar call.</p>
  
  <p>Just to clarify, the DirectoryEntry and DN are the only pieces of information I have.  I cannot instantiate a new <code>DirectoryEntry</code> because then I would have have to either use the default Directory and credentials or have the Directory name/port and username/password.</p>