Index: branches/5.0.x/core/install/install_toolkit.php
===================================================================
diff -u -r12450 -r12457
--- branches/5.0.x/core/install/install_toolkit.php	(.../install_toolkit.php)	(revision 12450)
+++ branches/5.0.x/core/install/install_toolkit.php	(.../install_toolkit.php)	(revision 12457)
@@ -1,6 +1,6 @@
 <?php
 /**
-* @version	$Id: install_toolkit.php 12450 2009-09-05 13:39:05Z alex $
+* @version	$Id: install_toolkit.php 12457 2009-09-08 08:27:45Z alex $
 * @package	In-Portal
 * @copyright	Copyright (C) 1997 - 2009 Intechnic. All rights reserved.
 * @license      GNU/GPL
@@ -832,8 +832,8 @@
 		function checkWritePermissions($file)
 		{
 			if (DIRECTORY_SEPARATOR == '\\') {
-				// windows doen't allow to check permissions (always returns true)
-				return true;
+				// windows doen't allow to check permissions (always returns null)
+				return null;
 			}
 
 			$permissions = fileperms($file);