Precision Flight USB Avionics and FSX - Manual (Page 2)

Preface
To make the PFC USB Digital Avionics function with FSX, you will only need to install the
PFCHid.dll. Below is the link and installation procedure.
PFC HID Installation for Microsoft Flight Simulator X
1. Download the PFCHid driver for FSX here:
https://www.flypfc.com/downloads/support/drivers/PFCFSX%20USB.exe
2. Double click on the PFChid.exe
3. Click Next on the Welcome screen.