Hi. LG PC Sync can work with ~/.wine/dosdevices/com1 but fails to enumerate com ports. I cannot select port other than COM1 and the combo box that would allow me to do that is blank. I did: # ln -s /dev/ttyACM0 ~/.wine/dosdevices/com5 # sudo chmod g+rw,o+rw /dev/ttyACM0 and added to registry: [HKEY_LOCAL_MACHINE\Hardware\DEVICEMAP\SERIALCOMM] "COM5"="COM5" env WINEDEBUG=+reg wine "C:\Program Files\LGGSM\LGPCSync\LGPCSync.exe" & then open "options" dialog: Code: trace:reg:NtOpenKey (0x28,L"System\\CurrentControlSet\\Control\\DeviceClasses",20019,0x32e1a4) trace:reg:NtOpenKey <- (nil) trace:reg:NtOpenKey (0x28,L"SYSTEM\\CurrentControlSet\\Services\\Modem\\Enum",20019,0x32e51c) trace:reg:NtOpenKey <- (nil) If you create "DeviceClasses" then it scans 2 keys inside: {4D36E978-E325-11CE-BFC1-08002BE10318} {86E0D1E0-8089-11D0-9CE4-08003E301F73} I don't know what to put there wine-1.1.25