[Plugin: MAC PHOTO GALLERY] not activate

Fatal error: Uncaught exception ‘Exception’ with message ‘Facebook needs the CURL PHP extension.’ in D:\xampp\htdocs\wordpress\wen24\wp-content\plugins\mac-dock-gallery\sdk\base_facebook.php:19 Stack trace: #0 D:\xampp\htdocs\wordpress\wen24\wp-content\plugins\mac-dock-gallery\sdk\facebook.php(18): require_once() #1 D:\xampp\htdocs\wordpress\wen24\wp-content\plugins\mac-dock-gallery\macGallery.php(13): require_once(‘D:\xampp\htdocs…’) #2 D:\xampp\htdocs\wordpress\wen24\wp-admin\plugins.php(146): include(‘D:\xampp\htdocs…’) #3 D:\xampp\htdocs\wordpress\wen24\wp-admin\plugins.php(148): plugin_sandbox_scrape(‘mac-dock-galler…’) #4 {main} thrown in D:\xampp\htdocs\wordpress\wen24\wp-content\plugins\mac-dock-gallery\sdk\base_facebook.php on line 19

http://wordpress.org/extend/plugins/mac-dock-gallery/