I have 2 different kinds of sim cords, 1 parallel cord that I made for FMS, it works great for FMS only, and a second sim cord that I ordered just for FMS it is the com port cord.
I can't get the parallel cord to work at all with Pre-Flight.
I can get the Com port cord to work with Pre-Flight But I can't Calibrate the Transmitter, Is there any settings that I can adjust to help me with this, or do I have to build the other com port interface to work with it?????

i use a regular realflight controller, select keyboard+joystickin the controls menu, now the ails and elevator work, the click on the configure box next to the throttle and set it for joystick, and channel 7, do the same for the rudder only set it for channel 6. works great for me, and its free.....