Warning: include(BasePrevention.php) [function.include]: failed to open stream: No such file or directory in D:\wamp\www\prev_indices.php on line 2

Warning: include() [function.include]: Failed opening 'BasePrevention.php' for inclusion (include_path='.;C:\php5\pear') in D:\wamp\www\prev_indices.php on line 2

Warning: require_once(req_risque.php) [function.require-once]: failed to open stream: No such file or directory in D:\wamp\www\prev_indices.php on line 3

Fatal error: require_once() [function.require]: Failed opening required 'req_risque.php' (include_path='.;C:\php5\pear') in D:\wamp\www\prev_indices.php on line 3