diff --git a/adm/board_copy_update.php b/adm/board_copy_update.php
index cbeacc3f8..e72c2bc36 100644
--- a/adm/board_copy_update.php
+++ b/adm/board_copy_update.php
@@ -53,7 +53,6 @@ $sql = " insert into {$g4['board_table']}
                  bo_use_secret = '{$board[bo_use_secret]}',
                  bo_use_dhtml_editor = '{$board[bo_use_dhtml_editor]}',
                  bo_use_sideview = '{$board[bo_use_sideview]}',
-                 bo_use_comment = '{$board[bo_use_comment]}',
                  bo_use_good = '{$board[bo_use_good]}',
                  bo_use_nogood = '{$board[bo_use_nogood]}',
                  bo_use_signature = '{$board[bo_use_signature]}',
diff --git a/adm/board_form.php b/adm/board_form.php
index 462b5aad3..d9a52a452 100644
--- a/adm/board_form.php
+++ b/adm/board_form.php
@@ -304,16 +304,6 @@ include_once ('./admin.head.php');
         <label for="chk_use_file_content">동일그룹 모두 적용</label>
     </td>
 </tr>
-<tr>
-    <th scope="row"><label for="bo_use_comment">댓글 새창 사용</label></th>
-    <td>
-        <input type="checkbox" id="bo_use_comment" name="bo_use_comment" value="1" <?=$board['bo_use_comment']?'checked':'';?>>사용 (댓글수 클릭시 새창으로 보임)
-    </td>
-    <td class="group_setting">
-        <input type="checkbox" id="chk_use_comment" name="chk_use_comment" value="1">
-        <label for="chk_use_comment">동일그룹 모두 적용</label>
-    </td>
-</tr>
 <tr>
     <th scope="row"><label for="bo_use_secret">비밀글 사용</label></th>
     <td>
diff --git a/adm/board_form_update.php b/adm/board_form_update.php
index 26e6c134c..9e393e949 100644
--- a/adm/board_form_update.php
+++ b/adm/board_form_update.php
@@ -87,7 +87,6 @@ $sql_common = " gr_id               = '{$_POST['gr_id']}',
                         bo_use_secret       = '{$_POST[bo_use_secret]}',
                         bo_use_dhtml_editor = '{$_POST[bo_use_dhtml_editor]}',
                         bo_use_rss_view     = '{$_POST[bo_use_rss_view]}',
-                        bo_use_comment      = '{$_POST[bo_use_comment]}',
                         bo_use_good         = '{$_POST[bo_use_good]}',
                         bo_use_nogood       = '{$_POST[bo_use_nogood]}',
                         bo_use_name         = '{$_POST[bo_use_name]}',
@@ -262,7 +261,6 @@ if ($chk_category_list) {
 }
 if ($chk_use_sideview) $s .= " , bo_use_sideview = '{$bo_use_sideview}' ";
 if ($chk_use_file_content) $s .= " , bo_use_file_content = '{$bo_use_file_content}' ";
-if ($chk_use_comment) $s .= " , bo_use_comment = '{$bo_use_comment}' ";
 if ($chk_use_secret) $s .= " , bo_use_secret = '{$bo_use_secret}' ";
 if ($chk_use_dhtml_editor) $s .= " , bo_use_dhtml_editor = '{$bo_use_dhtml_editor}' ";
 if ($chk_use_rss_view) $s .= " , bo_use_rss_view = '{$bo_use_rss_view}' ";
diff --git a/bbs/board.php b/bbs/board.php
index 8e29f8cc3..072cb041a 100644
--- a/bbs/board.php
+++ b/bbs/board.php
@@ -1,16 +1,8 @@
 <?
 include_once('./_common.php');
 
-$cwin = "";
-if (isset($_GET['cwin']) && $_GET['cwin']) {
-    $cwin = $_GET['cwin'];
-}
-
 if (!$board['bo_table']) {
-    if ($cwin) // 코멘트 보기
-       alert_close('존재하지 않는 게시판입니다.', $g4['path']);
-    else
-       alert('존재하지 않는 게시판입니다.', $g4['path']);
+   alert('존재하지 않는 게시판입니다.', $g4['path']);
 }
 
 if (isset($write['wr_is_comment']) && $write['wr_is_comment']) {
@@ -19,10 +11,7 @@ if (isset($write['wr_is_comment']) && $write['wr_is_comment']) {
 
 if (!$bo_table) {
     $msg = "bo_table 값이 넘어오지 않았습니다.\\n\\nboard.php?bo_table=code 와 같은 방식으로 넘겨 주세요.";
-    if ($cwin) // 코멘트 보기
-        alert_close($msg);
-    else
-        alert($msg);
+    alert($msg);
 }
 
 // wr_id 값이 있으면 글읽기
@@ -30,20 +19,14 @@ if (isset($wr_id) && $wr_id) {
     // 글이 없을 경우 해당 게시판 목록으로 이동
     if (!$write['wr_id']) {
         $msg = '글이 존재하지 않습니다.'.PHP_EOL.PHP_EOL.'글이 삭제되었거나 이동된 경우입니다.';
-        if ($cwin)
-            alert_close($msg);
-        else
-            alert($msg, './board.php?bo_table='.$bo_table);
+        alert($msg, './board.php?bo_table='.$bo_table);
     }
 
     // 그룹접근 사용
     if (isset($group['gr_use_access']) && $group['gr_use_access']) {
         if ($is_guest) {
             $msg = "비회원은 이 게시판에 접근할 권한이 없습니다.\\n\\n회원이시라면 로그인 후 이용해 보십시오.";
-            if ($cwin)
-                alert_close($msg);
-            else
-                alert($msg, './login.php?wr_id='.$wr_id.$qstr.'&amp;url='.urlencode('./board.php?bo_table='.$bo_table.'&amp;wr_id='.$wr_id));
+            alert($msg, './login.php?wr_id='.$wr_id.$qstr.'&amp;url='.urlencode('./board.php?bo_table='.$bo_table.'&amp;wr_id='.$wr_id));
         }
 
         // 그룹관리자 이상이라면 통과
@@ -195,26 +178,21 @@ $admin_href = "";
 if ($member['mb_id'] && ($is_admin == 'super' || $group['gr_admin'] == $member['mb_id']))
     $admin_href = $g4['admin_path'].'/board_form.php?w=u&amp;bo_table='.$bo_table;
 
-if (!($board['bo_use_comment'] && $cwin))
-    include_once('./board_head.php');
+include_once('./board_head.php');
 
 echo '<script src="'.$g4['path'].'/js/sideview.js"></script>';
 
-if (!($board['bo_use_comment'] && $cwin)) {
-    // 게시물 아이디가 있다면 게시물 보기를 INCLUDE
-    if (isset($wr_id) && $wr_id) {
-        include_once('./view.php');
-    }
-
-    // 전체목록보이기 사용이 "예" 또는 wr_id 값이 없다면 목록을 보임
-    //if ($board['bo_use_list_view'] || empty($wr_id))
-    if ($member['mb_level'] >= $board['bo_list_level'] && $board['bo_use_list_view'] || empty($wr_id))
-        include_once ('./list.php');
-
-    include_once('./board_tail.php');
+// 게시물 아이디가 있다면 게시물 보기를 INCLUDE
+if (isset($wr_id) && $wr_id) {
+    include_once('./view.php');
 }
-else
-    include_once('./view_comment.php');
+
+// 전체목록보이기 사용이 "예" 또는 wr_id 값이 없다면 목록을 보임
+//if ($board['bo_use_list_view'] || empty($wr_id))
+if ($member['mb_level'] >= $board['bo_list_level'] && $board['bo_use_list_view'] || empty($wr_id))
+    include_once ('./list.php');
+
+include_once('./board_tail.php');
 
 echo "\\n<!-- 사용스킨 : {$board['bo_skin']} -->\\n";
 
diff --git a/bbs/delete_comment.php b/bbs/delete_comment.php
index 4f61e0f0b..367e1f64e 100644
--- a/bbs/delete_comment.php
+++ b/bbs/delete_comment.php
@@ -83,5 +83,5 @@ sql_query(" delete from {$g4[board_new_table]} where bo_table = '{$bo_table}' an
 // 4.1
 @include_once($board_skin_path.'/delete_comment.tail.skin.php');
 
-goto_url('./board.php?bo_table='.$bo_table.'&amp;wr_id='.$write[wr_parent].'&amp;cwin='.$cwin.'&amp;page='.$page. $qstr);
+goto_url('./board.php?bo_table='.$bo_table.'&amp;wr_id='.$write[wr_parent].'&amp;page='.$page. $qstr);
 ?>
diff --git a/bbs/view_comment.php b/bbs/view_comment.php
index 1c077946f..eec2c658a 100644
--- a/bbs/view_comment.php
+++ b/bbs/view_comment.php
@@ -62,7 +62,7 @@ for ($i=0; $row=sql_fetch_array($result); $i++)
         {
             if ($row['mb_id'] == $member['mb_id'] || $is_admin) 
             {
-                $list[$i]['del_link']  = './delete_comment.php?bo_table='.$bo_table.'&amp;comment_id='.$row['wr_id'].'&amp;token='.$token.'&amp;cwin='.$cwin.'&amp;page='.$page.$qstr;
+                $list[$i]['del_link']  = './delete_comment.php?bo_table='.$bo_table.'&amp;comment_id='.$row['wr_id'].'&amp;token='.$token.'&amp;page='.$page.$qstr;
                 $list[$i]['is_edit']   = true;
                 $list[$i]['is_del']    = true;
             }
@@ -70,7 +70,7 @@ for ($i=0; $row=sql_fetch_array($result); $i++)
         else 
         {
             if (!$row['mb_id']) {
-                $list[$i]['del_link'] = './password.php?w=x&amp;bo_table='.$bo_table.'&amp;comment_id='.$row['wr_id'].'&amp;cwin='.$cwin.'&amp;page='.$page.$qstr;
+                $list[$i]['del_link'] = './password.php?w=x&amp;bo_table='.$bo_table.'&amp;comment_id='.$row['wr_id'].'&amp;page='.$page.$qstr;
                 $list[$i]['is_del']   = true;
             }
         }
diff --git a/bbs/write.php b/bbs/write.php
index 0a03e27ae..2dd9b7e5b 100644
--- a/bbs/write.php
+++ b/bbs/write.php
@@ -8,10 +8,7 @@ set_session('ss_wr_id', $wr_id);
 
 // 090713
 if (!$board['bo_table']) {
-    if ($cwin) // 코멘트 보기
-       alert_close('존재하지 않는 게시판입니다.', $g4['path']);
-    else
-       alert('존재하지 않는 게시판입니다.', $g4['path']);
+    alert('존재하지 않는 게시판입니다.', $g4['path']);
 }
 
 if (!$bo_table) {
diff --git a/bbs/write_comment_update.php b/bbs/write_comment_update.php
index 151decd8d..a1b4d62fa 100644
--- a/bbs/write_comment_update.php
+++ b/bbs/write_comment_update.php
@@ -339,5 +339,5 @@ else if ($w == 'cu') // 코멘트 수정
 @include_once($board_skin_path.'/write_comment_update.skin.php');
 @include_once($board_skin_path.'/write_comment_update.tail.skin.php');
 
-goto_url('./board.php?bo_table='.$bo_table.'&amp;wr_id='.$wr[wr_parent].'&amp;page='.$page.$qstr.'&amp;cwin='.$cwin.'#c_'.$comment_id);
+goto_url('./board.php?bo_table='.$bo_table.'&amp;wr_id='.$wr[wr_parent].'&amp;page='.$page.$qstr.'&amp;#c_'.$comment_id);
 ?>
diff --git a/lib/common.lib.php b/lib/common.lib.php
index f78ac11c3..c8096c574 100644
--- a/lib/common.lib.php
+++ b/lib/common.lib.php
@@ -339,10 +339,7 @@ function get_list($write_row, $board, $skin_path, $subject_len=40)
     $list['ca_name_href'] = $g4['bbs_path'].'/board.php?bo_table='.$board['bo_table'].'&amp;sca='.urlencode($list['ca_name']);
 
     $list['href'] = $g4['bbs_path'].'/board.php?bo_table='.$board['bo_table'].'&amp;wr_id='.$list['wr_id'].$qstr;
-    if ($board['bo_use_comment'])
-        $list['comment_href'] = "javascript:win_comment('{$g4['bbs_path']}/board.php?bo_table={$board['bo_table']}&amp;wr_id={$list['wr_id']}&amp;cwin=1');";
-    else
-        $list['comment_href'] = $list['href'];
+    $list['comment_href'] = $list['href'];
 
     $list['icon_new'] = '';
     if ($list['wr_datetime'] >= date("Y-m-d H:i:s", $g4['server_time'] - ($board['bo_new'] * 3600)))
diff --git a/skin/board/basic/view_comment.skin.php b/skin/board/basic/view_comment.skin.php
index b25a0ec77..b47f97e39 100644
--- a/skin/board/basic/view_comment.skin.php
+++ b/skin/board/basic/view_comment.skin.php
@@ -8,8 +8,6 @@ var char_min = parseInt(<?=$comment_min?>); // 최소
 var char_max = parseInt(<?=$comment_max?>); // 최대
 </script>
 
-<? if ($cwin==1) { ?><table width=100% cellpadding=10 align=center><tr><td><?}?>
-
 <!-- 코멘트 리스트 -->
 <div id="commentContents">
 <?
@@ -93,7 +91,6 @@ for ($i=0; $i<count($list); $i++) {
 <input type=hidden name=stx         value='<?=$stx?>'>
 <input type=hidden name=spt         value='<?=$spt?>'>
 <input type=hidden name=page        value='<?=$page?>'>
-<input type=hidden name=cwin        value='<?=$cwin?>'>
 <input type=hidden name=is_good     value=''>
 
 <table width=100% cellpadding=3 height=156 cellspacing=0 bgcolor="#ffffff" style="border:1px solid #fff; background:url(<?=$board_skin_path?>/img/co_bg.gif) x-repeat;">
@@ -315,5 +312,3 @@ function comment_delete(url)
 comment_box('', 'c'); // 코멘트 입력폼이 보이도록 처리하기위해서 추가 (root님)
 </script>
 <? } ?>
-
-<? if($cwin==1) { ?></td><tr></table><p align=center><a href="javascript:window.close();"><img src="<?=$board_skin_path?>/img/btn_close.gif" border="0"></a><br><br><?}?>
diff --git a/skin/board/neo/view_comment.skin.php b/skin/board/neo/view_comment.skin.php
index 9a2c55fcc..41f833f48 100644
--- a/skin/board/neo/view_comment.skin.php
+++ b/skin/board/neo/view_comment.skin.php
@@ -1,7 +1,5 @@
 <?
 if (!defined('_GNUBOARD_')) exit; // 개별 페이지 접근 불가
-
-// $cwin 은 댓글 새창일 때
 ?>
 
 <script>
@@ -10,8 +8,6 @@ var char_min = parseInt(<?=$comment_min?>); // 최소
 var char_max = parseInt(<?=$comment_max?>); // 최대
 </script>
 
-<? if ($cwin==1) { ?><?}?>
-
 <!-- 댓글 리스트 -->
 <section id="commentContents">
     <h2>댓글</h2>
@@ -71,7 +67,6 @@ var char_max = parseInt(<?=$comment_max?>); // 최대
     <input type="hidden" name="stx" value="<?=$stx?>">
     <input type="hidden" name="spt" value="<?=$spt?>">
     <input type="hidden" name="page" value="<?=$page?>">
-    <input type="hidden" name="cwin" value="<?=$cwin?>">
     <input type="hidden" name="is_good" value="">
 
     <div id="comment_write">
@@ -278,5 +273,3 @@ var char_max = parseInt(<?=$comment_max?>); // 최대
     </script>
     <? } ?>
 </section>
-
-<? if($cwin==1) { ?><?}?>