I trying to write an application that search for a given user in active directory and the groups that the given user is part of. The problem is that the user is under a organizational units (folder) and I am not able get to the information.
Bellow is the code that I am using. Can any one help me? Thank you

DirectoryEntry entry = new DirectoryEntry("LDAP://hq-2k3/cn=rtest,cn=IT,DC=kaneCompany,DC=com");
           Console.WriteLine(entry.Properties.Count.ToString( ));
            PropertyValueCollection col = entry.Properties["MemberOf"];
            IEnumerator enumerator = col.GetEnumerator();
            while(enumerator.MoveNext())
            {
                Console.WriteLine("Groups are " + enumerator.Current.ToString());
                //if this gives error then u might need to type case it to AD group object.
            }



Thank you
Wilson