diff --git a/common.php b/common.php
index dff8c4e0a..706d7339b 100644
--- a/common.php
+++ b/common.php
@@ -69,18 +69,44 @@ $g4     = array();
 
 function g4_path()
 {
-    $path           = dirname(__FILE__);                                        // 예) /home/sir/www/g4s
+    $result['path'] = dirname(__FILE__);
+    $root = str_replace($_SERVER['DOCUMENT_ROOT'], '', $result['path']);
+    $port = $_SERVER['SERVER_PORT'] != 80 ? ':'.$_SERVER['SERVER_PORT'] : '';
+    $http = 'http' . ((isset($_SERVER['HTTPS']) && $_SERVER['HTTPS']=='on') ? 's' : '') . '://';
+    $user = str_replace(str_replace($_SERVER['DOCUMENT_ROOT'], '', $_SERVER['SCRIPT_FILENAME']), '', $_SERVER['SCRIPT_NAME']);
+    $result['url'] = $http.$_SERVER['SERVER_NAME'].$port.$user.$root;
+
+
+    //$base_dir  = parse_url($_SERVER['REQUEST_URI']);
+    //print_r($base_dir);
+    /*
     $linux_dir      = str_replace("\\", "/", $path);                            // 예) /home/sir/www/g4s
     $document_root  = str_replace("\\", "/", $_SERVER['DOCUMENT_ROOT']);        // 예) /home/sir/www
-    $base_dir       = preg_replace('#^'.$document_root.'#i', '', $linux_dir);   // 예) /g4s
+
+    if (strpos($linux_dir, $document_root) === false) {
+		for($base_dir = dirname($_SERVER['SCRIPT_NAME']); strpos($linux_dir, $base_dir) === false; $base_dir = dirname($base_dir));
+
+		if (strlen($base_dir) && strlen($linux_dir) != (strrpos($linux_dir, $base_dir)+strlen($base_dir))) {
+			$base_dir = substr($linux_dir, strrpos($linux_dir, $base_dir));
+		}
+    }
+    else {
+        $base_dir       = preg_replace('#^'.$document_root.'#i', '', $linux_dir);   // 예) /g4s
+    }
+
+	if (strlen($base_dir) && substr($base_dir, 0, 1) != '/') $base_dir = '/'.$base_dir;
+
     $port           = $_SERVER['SERVER_PORT'] != 80 ? ':'.$_SERVER['SERVER_PORT'] : '';
     $http           = 'http' . ((isset($_SERVER['HTTPS']) && $_SERVER['HTTPS']=='on') ? 's' : '') . '://';
 
     $result = array();
-    $result['path']     = $path;
+	// 윈도우의 경우 역슬레쉬 경로인데 그다지 권장하지 않는다. php에서는 슬레쉬도 경로 인자로 인식하므로 슬레쉬 사용.
+	$result['path'] = $linux_dir;
+
     $result['url']      = $http.$_SERVER['SERVER_NAME'].$port.$base_dir;
     $result['curr_url'] = $http.$_SERVER['SERVER_NAME'].$port.$_SERVER['PHP_SELF'];
     $result['curr_uri'] = $result['curr_url'] . ($_SERVER['QUERY_STRING'] ? '?'.$_SERVER['QUERY_STRING'] : '');
+    */
 
     return $result;
 }
@@ -127,7 +153,7 @@ div a {display:block;margin:50px auto 10px;width:170px;text-align:center}
             <li><strong><?=$dbconfig_file?></strong></li>
         </ul>
         <p>프로그램 설치 후 실행하시기 바랍니다.</p>
-        <a href="<?=G4_URL?>/install/">그누보드4S 설치하기</a>
+        <a href="./install/">그누보드4S 설치하기</a>
     </div>
 </body>
 </html>