You might be out of luck. As games progress, so does the technology and if you try to play games with not enough technology it won't work and if you try to play games with too much technology, it also won't work. If it was a windows 2000 game, I think that's the cut off point. Windows 98 was using some primitive stuff.
Maybe the autorun just won't come up, so try putting in the disc, going to start -> run and typing in the letter of your cd drive (so for me it would be e

and hit enter. When the folder opens up, you're looking for something that says setup. Double click that and it should load what the autorun kicks off. If that doesn't work, then it's not going to work at all. I've heard of bypassing the autorun, but if the installer doesn't work, I don't know what else to tell you. Maybe look online and see if there is a windows 98 mock environment you could D/L. I know Mac's have Windows environments they can download to play games, maybe there is one for older versions of Windows. Good luck regardless.