The 98SE disc should be bootable. Boot from CD with CD Rom support. If it kick you into Windows setup, quit- it'll take you to a dos prompt, not reboot.
If not, you can find Win98 boot discs for download (floppy images) that will allow you to use the files off the 98 setup CD in a dos mode.
If not, you can find Win98 boot discs for download (floppy images) that will allow you to use the files off the 98 setup CD in a dos mode.