Hi to all. Finally I have COM1 on wine apps. I symlinked ttyS0 and added these keys Code: [HARDWARE\\DEVICEMAP\\SERIALCOMM] "COM1"="COM1" "COM2"="COM2" But regedit deletes them. If I do this Code: wine regedit serial.reg wine regedit I see the keys. I open my program with regedit opened and I see com1 and com2 But If I close regedit, then keys disappears...