Warning: require(session.php) [function.require]: failed to open stream: No such file or directory in d:\ip1\web2009.com\www\index.php on line 2

Fatal error: require() [function.require]: Failed opening required 'session.php' (include_path='.;C:\php5\pear') in d:\ip1\web2009.com\www\index.php on line 2