Information Card is an open standard. Besides the implementation of the Information Cards in Windows
CardSpace™ by Microsoft®, it is available almost for all browsers and operating systems. Windows CardSpace was released from Microsoft with Windows Vista and Microsoft. NET Framework 3.0.
Internet Explorer
Internet Explorer users under Microsoft Windows install therefore the .NET Framework (under Windows Vista this is already pre-installed) and thus obtained the card selector Windows CardSpace:
Information to Internet Explorer 8
Internet Explorer version 8 users, please post the URL webcard-loyalty.com in the dialog "site" under "Compatibility View setting".
Firefox
Users of Firefox under Microsoft Windows please install two components, the .NET Framework (under Windows Vista this is already pre-installed):
and additionally a browser add-on:
Linux and MacOS users please install two components, the DigitalMe card selector:
and additionally the DigitalMe add-on for Firefox or Safari:
Optional users of Windows with Internet Explorer or Firefox, and MacOS users with Firefox also can use the card selector from Azigo. More information about Azigo!
Overview of the available card selectors for serveral operating systems and browers.
Source: http://funlamp.dmz.fun.de/english/Solutions/InformationCard/Requirements.asp