The latest version of extension freeCap CAPTCHA (extension key: sr_freecap) requires TYPO3 4.0 and PHP 5.

Version 0.2.3 is the last version of this extension that will work with TYPO3 3.7.1-3.8.2.

The audio rendering feature requires PHP to be compiled with the mcrypt module.

The extension requires PHP to be compiled with gd. The use of GDlib by TYPO3 should also be properly configured with the TYPO3 Install Tool.

The GD Font maker module requires Gdlib 2. It will not appear in the BE menu if Gdlib 2 is not available.