If I recall, the trigem Windows 98 OS install was very oddball. You basically point the questions to look at C:\Windows, C:\Windows\System of the Win98 directory of the OS CD (or what's on the hard disk) and it uses what was installed.

This is the way it was during the 90's as to driver installs and may not be accepted behaviour now. People who run this OS and install it a lot learn that error messages and such hoop jumping is fairly normal.

Best of luck,

Bob