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');
Index: branches/5.2.x/.htaccess
===================================================================
diff -u -N -r15129 -r15620
--- branches/5.2.x/.htaccess	(.../.htaccess)	(revision 15129)
+++ branches/5.2.x/.htaccess	(.../.htaccess)	(revision 15620)
@@ -19,48 +19,53 @@
 	ExpiresByType image/icon "access plus 1 month"
 </IfModule>
 
-## Enable mod-rewrite
-RewriteEngine On
+<IfModule mod_rewrite.c>
+	## Tell PHP that the mod_rewrite module is ENABLED.
+	SetEnv HTTP_MOD_REWRITE On
 
-###### Rewrite rule to force 'www.' prefix. Use only if needed
-# If your site can be accessed both with and without the 'www.' prefix,
-# use the following setting to redirect all users to access the site with the 'www.'
-# when they access without 'www.'. Uncomment and MAKE sure to adapt for your domain name
-#
-# RewriteCond %{HTTP_HOST} ^example\.com$ [NC]
-# RewriteRule ^(.*)$ http://www.example.com/$1 [L,R=301]
+	## Enable mod-rewrite
+	RewriteEngine On
 
-###### Rewrite rules to block common hacks
-## If you experience problems comment out the operations listed below
-## Block out any script trying to base64_encode crap to send via URL
-RewriteCond %{QUERY_STRING} base64_encode.*\(.*\) [OR]
-## Block out any script that includes a <script> tag in URL
-RewriteCond %{QUERY_STRING} (<|%3C).*script.*(>|%3E) [NC,OR]
-## Block out any script trying to set a PHP GLOBALS variable via URL
-RewriteCond %{QUERY_STRING} GLOBALS(=|\[|\%[0-9A-Z]{0,2}) [OR]
-## Block out any script trying to modify a _REQUEST variable via URL
-RewriteCond %{QUERY_STRING} _REQUEST(=|\[|\%[0-9A-Z]{0,2})
-## Send all blocked request to homepage with 403 Forbidden error!
-RewriteRule ^(.*)$ index.php [F,L]
+	###### Rewrite rule to force 'www.' prefix. Use only if needed
+	# If your site can be accessed both with and without the 'www.' prefix,
+	# use the following setting to redirect all users to access the site with the 'www.'
+	# when they access without 'www.'. Uncomment and MAKE sure to adapt for your domain name
+	#
+	# RewriteCond %{HTTP_HOST} ^example\.com$ [NC]
+	# RewriteRule ^(.*)$ http://www.example.com/$1 [L,R=301]
 
-## Uncomment line below if FollowSymLinks option is not enabled
-## by default in server configuration
-#
-# Options +FollowSymLinks
+	###### Rewrite rules to block common hacks
+	## If you experience problems comment out the operations listed below
+	## Block out any script trying to base64_encode crap to send via URL
+	RewriteCond %{QUERY_STRING} base64_encode.*\(.*\) [OR]
+	## Block out any script that includes a <script> tag in URL
+	RewriteCond %{QUERY_STRING} (<|%3C).*script.*(>|%3E) [NC,OR]
+	## Block out any script trying to set a PHP GLOBALS variable via URL
+	RewriteCond %{QUERY_STRING} GLOBALS(=|\[|\%[0-9A-Z]{0,2}) [OR]
+	## Block out any script trying to modify a _REQUEST variable via URL
+	RewriteCond %{QUERY_STRING} _REQUEST(=|\[|\%[0-9A-Z]{0,2})
+	## Send all blocked request to homepage with 403 Forbidden error!
+	RewriteRule ^(.*)$ index.php [F,L]
 
-## Uncomment following line if your webserver's URL
-## is not directly related to physical file paths.
-## Update Your In-Portal Directory (just / for root)
-#
-# RewriteBase /
+	## Uncomment line below if FollowSymLinks option is not enabled
+	## by default in server configuration
+	#
+	# Options +FollowSymLinks
 
-## In-Portal SEF URLs
-#
-RewriteCond %{REQUEST_FILENAME} !-f
-RewriteCond %{REQUEST_FILENAME}/ !-f
-RewriteCond %{REQUEST_FILENAME}/index.php !-f
-RewriteCond %{REQUEST_FILENAME}/index.html !-f
-RewriteCond %{REQUEST_URI} !\.(gif|jpg|png|bmp|js|css|ico|swf)$ [NC]
-RewriteRule ^(.*) index.php?rewrite=on&_mod_rw_url_=$1 [QSA]
+	## Uncomment following line if your webserver's URL
+	## is not directly related to physical file paths.
+	## Update Your In-Portal Directory (just / for root)
+	#
+	# RewriteBase /
 
+	## In-Portal SEF URLs
+	#
+	RewriteCond %{REQUEST_FILENAME} !-f
+	RewriteCond %{REQUEST_FILENAME}/ !-f
+	RewriteCond %{REQUEST_FILENAME}/index.php !-f
+	RewriteCond %{REQUEST_FILENAME}/index.html !-f
+	RewriteCond %{REQUEST_URI} !\.(gif|jpg|png|bmp|js|css|ico|swf)$ [NC]
+	RewriteRule ^(.*) index.php?rewrite=on&_mod_rw_url_=$1 [QSA]
+</IfModule>
+
 RedirectMatch 404 /(\.svn|CVS)(/|$)
\ No newline at end of file