- Windows Vista: Microsoft Internet Explorer 7, Firefox 2.0, AOL 9
- Windows XP: Microsoft Internet Explorer 6.0 or later, Firefox 1.x, Firefox 2.x, Mozilla 1.x or later, Netscape 7.x or later, AOL 9, Opera 7.11 or later
- Windows Server 2003: Microsoft Internet Explorer 6.0 or later, Firefox 1.x, Firefox 2.x
- Windows 2000: Microsoft Internet Explorer 5.x, Firefox 1.x, Firefox 2.x, Mozilla 1.x, Netscape 7.x or later, AOL 9, Opera 7.11 or later
- Windows Me: Microsoft Internet Explorer 5.5, Firefox 1.x, Mozilla 1.x, Netscape 7.x or later, AOL 9, Opera 7.11 or later
- Windows 98: Microsoft Internet Explorer 6.0 or later, Firefox 1.x, Mozilla 1.x, Netscape 7.x or later, CompuServe 7, AOL 9, Opera 7.11 or later