Hi !
I was about to ask a similar question. I have a MacBook Pro with Express Card slot.
There's an Express Card with Parallel port I've seen.
The way I figure it, if I use Boot Camp and install the Express Card, it should install in the Windows environment.
Thus, there's a fair chance it will work with the parallel port dongle. Then install Parallels to use the Boot Camp partition.
As for Parallels, the question is, how will it handle the Express Card port?
Delphin, if you're out there, could you tell me more about this dongle emulator program?