In which folder are the USB drivers stored in 98se?

In which folder are the 'INSTALLED' USB drivers stored in 98se?

I got a driver file that is supposed to recognise all flash
drives.(Whether it works is just a matter of trying it). Presently I can
only access a few of these flash drives and they are all 4gb or less. I
want to try this file, but I hate risking losing all the individual
drivers I have installed over the years, because I have no idea what I
installed or if I even have these drivers anymore.

Although I do have a complete backup of the entire Windows folder for
Win98, I know it can be a hassle restoring the whole thing. I'd like to
just backup the folder (or folders) where these drivers are stored, as
well as their settings, which I assume are stored in the registry.

What folder(s) do I need to backup, and what else?
And while I'm at it, what are the names and location of those registry
files?

I can dual boot to Windows 2000 to restore this stuff if necessary, by
simply copying them back to the Windows folder.

This is one thing I like about Win98, you cant do this in any newer
Windows.... Heck, I've copied my entire Windows folder and program files
folders to other computers, and after installing some drivers for the
new hardware, I have a working clone of my entire W98 install. You cant
do that in XP or higher....