Please help: Phalcon is identified by PHP but is not accessible in HTTP server

I have copied Phalcon .dll files to php/ext folder. It is identified by PHP (php -m display phalcon among other extensions.) However, it is not accessible in Apache HTTP Server (It is not displayed in php.info page). I use PHP 5.6.6 x64, Phalcon 1.3 x 64, Apache/2.4.12 (Win64), Windows 7 x64.

What is wrong with it?

Are you sure is the right dll for your machine? Right now all dll's on website are for phalcon 2.0. Give them a try.

After that put in your php.ini

extension=path/to/phalcon.dll

and restart apache