In today's (unusually late) DOOM 3 newsbit, a post on
PlanetDOOM confirms from
Activision that DOOM 3 will not run under Windows 98 or Win98SE, but that
Windows XP or Windows 2000 will be required.
98 was a great gaming OS in it's day but with XP you get better support for newer hardware....it doesn't make 98 a bit of crap OS it was a great OS in its day