This article extolling the virtues of Firefox mentions some tools for shutting off Internet Explorer components. In case you are the person who has to figure out how to do it, this might be helpful:
<hr>I solved the problem with IEradicator, a no-cost utility from LitePC.com that strips IE from Windows 98. ...
LitePC.com also sells a utility that switches IE and other components on and off in Windows 2000 and XP, but that's a $40 utility offering functionality that Microsoft should include in its operating systems. It is possible to remove IE without buying anything. However, the procedures and software I discovered on the Internet (such as nLite) create an IE-free Windows installation disc and don't remove IE from existing systems.<hr>
Microsoft's Albatross, Mark Cappel, July 22, 2004 (what is the proper citation format for a blog, anyway?)