The Zend InfoCard Interfaces contain everything you need to provide support for Windows Cardspace™ and other infomation card technologies in your plug
This plugin embeds and loads the Zend InfoCard PHP 5 client interfaces for Windows Cardspace so that the client interfaces can be shared by different WordPress plugins.
This plugin fulfills the Zend InfoCard Framework dependency for other WordPress plugins. A significant benefit of using this plugin as your Zend InfoCard dependency instead of including the Zend InfoCard Framework directly in your individual plugins is to minimize redundancy, and to guarantee the latest version of the Zend InfoCard Framework.
The Zend InfoCard Framework is an open source, object-oriented web application framework implemented in PHP 5 and licensed under the New BSD License.
The current version uses Zend InfoCard 1.10.6