Modbus C# library unable to find FTD2XX DLL

Question

I am using Nmodbus to setup an implementation, and everytime I try to run one of the instances in the code I am prompted with the following error

unable to load DLL 'FTD2XX.dll': The specified module could not be found

I have searched through my system32 folder and copied and pasted a copy of the above DLL in there, and it is also in the folders corresponding to the C# solution. I can see it, it is there, but why am I being prompted with this error?

Answer 1

Aren't you mixing 32bit code with 64bit? Try changing target from AnyCPU to 32bits.