2roberto: Why do you think it is incompatible with an USB drive? I have no problems with this. You are, obviously, wrong.
With this line in the config.sys plus the program Watchcat
DEVICE = C: \ OS2 \ BOOT \ USBMOUSE.SYS / DEVICE: 1
With Lars 10.210 USB Drivers
After starting the pc, the usb with an external memory unit with fat32, works well. But after running the VirtualBox with xp, and closing it. The usb no longer works, even if you run the lvm / rediscoverprm.
With this one in the config.sys plus the program Watcat
DEVICE = C: \ OS2 \ BOOT \ USBMOUSE.SYS
With Lars 10.210 USB Drivers
Sometimes everything is fine, sometimes it fails, but not always.
I have not tested it with the usb11.14
Saludos