Index: /branches/feature-module-update/html/install/index.php
===================================================================
--- /branches/feature-module-update/html/install/index.php	(revision 16774)
+++ /branches/feature-module-update/html/install/index.php	(revision 16783)
@@ -630,5 +630,10 @@
         $install_dir = HTML_PATH;
     } else {
-        $install_dir = realpath(dirname( __FILE__) . "/../") . "/";
+		if (substr(PHP_OS, 0, 3) == 'WIN') {
+			// ウインドウズの場合はパスの区切り記号が違う
+	        $install_dir = realpath(dirname( __FILE__) . "/../");
+		}else{
+	        $install_dir = realpath(dirname( __FILE__) . "/../") . "/";
+		}
     }
 
@@ -820,5 +825,10 @@
     // 語尾に'/'をつける
     if (!ereg("/$", $root_dir)) {
-        $root_dir = $root_dir . "/";
+		if (substr(PHP_OS, 0, 3) == 'WIN') {
+	        // ウインドウズの場合はパスの区切り記号が違う
+	        $root_dir = $root_dir . "\\";
+		}else{
+	        $root_dir = $root_dir . "/";
+		}
     }
 
@@ -842,5 +852,10 @@
     // 語尾に'/'をつける
     if (!ereg("/$", $data_path)) {
-        $data_path = $data_path . "/";
+		if (substr(PHP_OS, 0, 3) == 'WIN') {
+	        // ウインドウズの場合はパスの区切り記号が違う
+        	$data_path = $data_path . "\\";
+		}else{
+	        $data_path = $data_path . "/";
+		}
     }
     $filepath = $data_path . "install.php";