The Alliance and Leicester Building Society’s “3D Secure” secure internet shopping service has the following requirements:
What are the system requirements for 3D Secure?
3D Secure requires the use of Windows Microsoft® Internet Explorer 5.5 and 6.0, Windows Netscape® 7.1 and 7.2, Windows AOL ® 9, Windows Firefox® 1.0 and Macintosh Safari®.
Wow. It’s a pretty small and exclusive clientele who can run all of those at once. I guess you’d need a Mac (for Safari) running at least two copies of Parallels (one for each version of IE)…