USB at High Speed, Full Speed and Low Speed... And now at SuperSpeed...: USB Drivers for DOS

If your system BIOS does not support booting from USB Disks, or you are using an old PC and willing to access some information from MS-DOS (If you are still using it) then there are few options that came to my notice that can be helpful to you.

The USBASPI.SYS is driver file you need to do this. This file is also known as "Panasonic v2.06 ASPI Manager for USB mass storage".

This driver is capable of mapping only map mass storage devices like external hard disks, cd- roms, cd-rw, dvd-rom, zip, jaz, ls-120, and flash memory to ASPI devices.

The driver switches you can use are: device=(path)USBASPI.SYS [/e] [/o] [/u] [/w] [/v] [/l[=n]] [/f] /r] [/slow] [/nocbc] [/norst] [/noprt]

You should be editing your config.sys and autoexec.bat files and add required changes to start using this driver.

[config.sys]

DOS=HIGH,UMB
lastdrive=Z
device=HIMEM.SYS
rem The following line loads Panasonic's universal USB- controller driver
devicehigh=USBASPI.SYS /v /w /e
rem the following is an aspi mass storage driver for usb- connected HDs and compactflash memory cards
devicehigh=DI1000DD.SYS
rem The following one loads CD-ROM driver
devicehigh=USBCD.SYS /d:USBCD001

[autoexec.bat]
@echo off
REM the following line adds a drive letter to the usb cd(rom/r/rw) mounted
LH MSCDEX /d:USBCD001

A very detailed explanation on how to use this driver and various options available with driver are nicely explained at http://www.theinquirer.net/inquirer/news/069/1046069/yes-there-are-usb-drivers-for-dos.

There is another interesting document explaining the USB Driver for DOS at FreeDOS Documentation. The details on how to are provided here.

usbaspi.sys and usbcd.sys available at:http://panasonic.co.jp/pcc/products/drive/cdrrw/kxlrw40an/driver/kxlrw40an.exe

di1000dd.sys available at: http://www.stefan2000.com/darkehorse/PC/DOS/Drivers/USB/mhairu.zip

If the pages don't open correctly better do a google search.

Alternatively, There is one more USB DOS Driver from Cypress. The link for Cypress USB Stack driver for DOS is here.(http://www.pocketec.net/downloads/duse_4_4.zip)