--- /var/www/drupal/drupal/modules/user/user.module	2010-05-13 18:55:33.000000000 +0530
+++ /var/www/drupal/drupal/modules/user/user.module_modified	2010-05-13 18:55:05.000000000 +0530
@@ -1990,6 +1990,7 @@ function user_filters() {
     'join' => '',
     'options' => array(1 => t('active'), 0 => t('blocked')),
   );
+  drupal_alter('admin_user_filters', $filters);	
   return $filters;
 }