If you have a problem when setting PHP extension via GUI. Try the step below. - Check the PHP ini. - In front of the module that need to load should not have semicolon (;) e.g. ;extension=php_mcrypt.dll => extension=php_mcrypt.dll - Also, you need to add "extension" line at the end of all extensions. e.g. ;extension=php_xmlrpc.dll ;extension=php_xsl.dll ;extension=php_zip.dll extension=php_curl.dll extension=php_mcrypt.dll extension=php_mcrypt_filter.dll Hope it will works.