I did go again trough the same process and I am still at the point where the PatchMix won't see the external bay...
Update: I had to use the corrected script for short name "E-MU E-DSP", and that had in the .ps1 file an typo at the end, that left the card (in Windows) in a "deactivated" mode. I enabled it in Windows and it worked!
Thanks!