sh: 1: fxload-libusb.exe: not found

[Sti78]

First of all, thank you for this code.
I've installed antifier by readme description on a pi with newest raspbian.
When running antifier, and hitting "Locate hardware" I get this:

pi@TACX:~/antifier $ sudo python antifier.py 
Assuming fixed resistance return value from trainer
Found uninitialised 1942 head unit
sh: 1: fxload-libusb.exe: not found
Initialising head unit, please wait 5 seconds
Unable to initialise trainer

How to fix this? fxload-libusb.exe is in the antifier directory.