[root@aral webdav]# diff -u ezwebdavcontentbackendauth.php.old ezwebdavcontentbackendauth.php
--- ezwebdavcontentbackendauth.php.old  2010-09-28 11:03:48.000000000 +0200
+++ ezwebdavcontentbackendauth.php      2010-12-08 12:47:37.000000000 +0100
@@ -60,7 +60,15 @@
      */
     public function authenticateBasic( ezcWebdavBasicAuth $data )
     {
-        $loginHandler = 'standard';
+        $ini = eZINI::instance();
+        if ( $ini->hasVariable( 'UserSettings', 'LoginHandler' ) )
+       {
+            $loginHandlers = $ini->variable( 'UserSettings', 'LoginHandler' );
+       }
+         else
+       {
+            $loginHandlers = array('standard');
+       }
 
         eZWebDAVContentBackend::appendLogEntry( "Got username: {$data->username}" );
         // added by @ds to fix problems with IE6 SP2
@@ -70,15 +78,18 @@
         }
         eZWebDAVContentBackend::appendLogEntry( "Processed to username: {$data->username}" );
 
-        $userClass = eZUserLoginHandler::instance( $loginHandler );
-        $user = $userClass->loginUser( $data->username, $data->password );
-
-        if ( !( $user instanceof eZUser ) )
+        foreach ($loginHandlers as $loginHandler)
         {
-            return false;
-        }
-        eZWebDAVContentBackend::appendLogEntry( "AuthenticatedBasic" );
-        return true;
+            $userClass = eZUserLoginHandler::instance( $loginHandler );
+            $user = $userClass->loginUser( $data->username, $data->password );
+ 
+            if ( $user instanceof eZUser )
+            {
+              eZWebDAVContentBackend::appendLogEntry( 'AuthenticatedBasic (login handler: ' . $loginHandler . ')' );
+              return true;
+            }
+       }
+        return false;
     }
 
     /**