== USB DRIVERS FOR DOS ==

Load them using devicehigh= (not device=!) on config.sys

== FILES ==
USBASPI.SYS = USB Driver (load it first)
DI100DD.SYS = ASPI Mass Storage Driver
USBCD.SYS = USB CD-ROM Driver

== USBASPI.SYS ==
devicehigh=USBASPI.SYS [/e] [/p] [/u] [/w] [/v] [/l=n]
/e = Search only for EHCI (USB 2.0) controllers
/o = Search only for OHCI (USB 1.1) controllers
/u = Search only for UHCI (USB 1.0) controllers
/w = Display messages on the console while swapping USB devices
/v = Verbose mode, shows status messages - recommended
/l = specifies the highest LUN number assigned to newly plugged devices

== DI1000DD.SYS ==
devicehigh=DI1000DD.SYS
The site where I found it said it works on USB HDDs and Compact Flash cards, I don't know if it works with other devices.

== USBCD.SYS ==
devicehigh=USBCD.SYS /d:DEVICE
/d = specify device name, used later when running MSCDEX

== SAMPLE CONFIG.SYS ==
DOS=HIGH,UMB
lastdrive=Z
device=HIMEM.SYS
devicehigh=USBASPI.SYS /v /w /e
devicehigh=DI1000DD.SYS
devicehigh=USBCD.SYS /d:USBCD001

== SAMPLE AUTOEXEC.BAT ==
@echo off
LH MSCDEX /D:USBCD001 /L:Y