Warning: include_once(PEAR/Registry.php) [function.include-once]: failed to open stream: No such file or directory in C:\ms4w\apps\chameleon\htdocs\common\installer\client\install.php on line 9

Warning: include_once() [function.include]: Failed opening 'PEAR/Registry.php' for inclusion (include_path='.;\ms4w\Apache\php\PEAR') in C:\ms4w\apps\chameleon\htdocs\common\installer\client\install.php on line 9

Fatal error: Class 'PEAR_Registry' not found in C:\ms4w\apps\chameleon\htdocs\common\installer\client\install.php on line 12