Index: branches/5.2.x/core/install/prerequisites.php
===================================================================
diff -u -N -r15595 -r15620
--- branches/5.2.x/core/install/prerequisites.php	(.../prerequisites.php)	(revision 15595)
+++ branches/5.2.x/core/install/prerequisites.php	(.../prerequisites.php)	(revision 15620)
@@ -1,6 +1,6 @@
 <?php
 /**
-* @version	$Id: prerequisites.php 15595 2012-10-23 15:54:15Z alex $
+* @version	$Id: prerequisites.php 15620 2012-11-07 16:48:48Z alex $
 * @package	In-Portal
 * @copyright	Copyright (C) 1997 - 2009 Intechnic. All rights reserved.
 * @license      GNU/GPL
@@ -118,7 +118,15 @@
 		{
 			$ret = Array ();
 			$ret['php_version'] = version_compare(PHP_VERSION, '5.2.0', '>=');
-			$ret['url_rewriting'] = function_exists('apache_get_modules') && in_array('mod_rewrite', apache_get_modules());
+
+			if ( function_exists('apache_get_modules') ) {
+				$mod_rewrite = in_array('mod_rewrite', apache_get_modules());
+			}
+			else {
+				$mod_rewrite = getenv('HTTP_MOD_REWRITE') == 'On';
+			}
+
+			$ret['url_rewriting'] = $mod_rewrite;
 			$ret['memcache'] = class_exists('Memcache');
 			$ret['curl'] = function_exists('curl_init');
 			$ret['simplexml'] = function_exists('simplexml_load_string');