Microsoft Internet Explorer v. 5.0 or higher + VeriSign i-NavTM plug-in
Microsoft Outlook and Outlook Express + VeriSign i-NavTM plug-in
Netscape 7.1 more
Mozilla 1.4 more
Opera 7.20 more
Safari 1.2 (MAC OS X 10.03) more
Konqueror (Linux with KDE 3.2) more