Yeah, I've been there, but it's the usual GitHub story, the ACTUAL file you want is hardly there

But even SDRplay themselves neglect to supply this file ( presumably they don't want you using 3rd party software)
Funny thing is the do give you the SDR RSP setup file, but That's doesn't seem to give you the ExIO either

..you see, this file is needed to use their hardware on most other software, like HDRSR, SDRsharp etc, easy enough with a USB, SDR but tricky to get files for certain hardware, like my SRDplay DX..
They've made it way more complicated that it should be