+<Files "paypal_ipn.php">
+ php_flag engine on
+ SetHandler application/x-httpd-php
+</Files>
+<Files "cms_images_autoresize.php">
+ php_flag engine on
+ SetHandler application/x-httpd-php
+</Files>
+RewriteCond %{REQUEST_FILENAME} !-f
+RewriteRule ^cms_images/[0-9a-f]+w[0-9]+\.[pj][np]g$ /cms_images_autoresize.php