I have found a working USB mass storage stack for DOS. It supports usb cd/hdd/sticks 😊

BAD:
- need pci card or onboard usb controller
- speed is cpu depended
- needs 49kb conventional memory
- you can only mount devices in boot time, NO swapping possible
- works better in NEC then VIA and lastly ALi based usb controllers (at least in my MVP3 mobo)

GOOD:
- works fine!
- no more cdrw burning
- speed is awesome too, 1+ MB/sec! on p200mmx
- full read/write support

there are some instructions in tha .zip I attach but basically you need to add these lines tou your config.sys:

DEVICEHIGH=usbaspi5.sys /int /all /v
DEVICEHIGH=di1000dd.sys
LASTDRIVE=Z

that loads the driver in EHCI mode (usb2 speeeds) , loads all devices and then the hdd/stick driver

if you have a cdrom then u must load this in config.sys
devicehigh=USBCD(?).SYS /d:USBCD001
and this in autoexec.bat:
MSCDEX /d:USBCD001

I just made a section in my multi-config called USB_SUPPORT , there is no need to always load the driver... works OK and FAST now!!!