I downloaded the latest version of Elite Hardware Interface (1.91) and installed without problems in my Windows 7 system (also updated the FTDI drivers when request).
In Control Panel the OS recognizes correctly my 5 devices (ELITE AP4000 ADF USB, ELITE AP4000 Audio/Alt/Vs Pre USB and so on) and the drivers are the FTDI ver.2.4.16.0.
When launched, Elite Hardware Interface sees the 5 devices connected (all parts of AP4000 stack) but for each of them I get an error "INVALID USB PORT!". I tried to switch to another USB port but the error is always present.
In X-Plane 10.45 (64 bit) they don't work.
The USB ports of my system are ok.
Any help is appreciated, thank you.