Hi,

I had the same kind of problems with windows.
the solution is simple, just install the virtual driver so that it becomes a com-port. and use it like a comport.

some hik ups I had:
- add additional code for checking if the port is still there.
under windows you get "can not open file" error 5.
- if you send small data packets be aware..
do not ask me why but the timing with rs232-usb is bad.
so insert additional time out for responce.
I even had different handling between 2 pc's.
yes, its that bad.

Hope it helps,

Jewe