title: C# LDAP query to retrieve all users in an organisational unit
body: <p>I'm trying to run an LDAP query which will return all users which belong to the organisational units <code>OU=Employees</code> and <code>OU=FormerEmployees</code> and I am not getting anywhere.</p>
  
  <p>I tried searching using the <code>distinguishedName</code> but that doesn't appear to support wildcards. I know there has to be an easier way but my searching effort hasn't yielded any results</p>