As far as I remember, it was right click>install, not "go to display and fonts and click and click done". But I might be confusing it with a .reg file.
However, http://support.microsoft.com/kb/314960 gives a totally different instruction, using the Explorer menu from the Windows\fonts folder. That certainly rings a bell.
And http://www.microsoft.com/resources/documentation/windows/xp/all/proddocs/en-us/windows_fonts_addnew.mspx?mfr=true gives a complete other way, from Control Panel.
Did you try these 2 methods recommended by Microsoft? They might work with you, even with IE 'removed'.
My friend has an XP computer and he is trying to add a bold new font to his computer so he can see it better. I go to display and fonts and click the one he wants and click done. But there is no change. One thing, he has Internet explorer deactivated as he uses firefox and google chrome. Would this cause a problem? I have 2 books on XP and tried to follow directions in those. But it didn't work. Can't figure out why he can't add a new font. Thanks Barb