After all I've read about USB DOS drivers, I still have'nt found anyone who had said that, under DOS, managing simultaneously an USB mouse
( notably via UHCI.EXE or OHCI.EXE ) and HDs or keys ( via USBASPI.SYS + DI1000DD.SYS ) seems to be impossible !?...

Is it the case ? Is there a way of making them accomodate ? Or are there other general drivers set solutions ?

Yann G