LDAPS Problem

Sample

            // inputs: ldapConnection like ldap.foobar.local:636 
            // authType like Basic?    
            var entry = new DirectoryEntry(ldapConnection, username, password);
            entry.AuthenticationType = authType;
            var searcher = new DirectorySearcher(entry);
            searcher.PageSize = 1000;
            searcher.Filter = Config.Instance.LdapFilter;
            searcher.SearchScope = SearchScope.Subtree;
            searcher.PropertiesToLoad.AddRange(...);
            SearchResultCollection result = null;

            try
            {
                result = searcher.FindAll();
            }
            catch(Exception exc)
            {
                // :(
                throw;   
            }