I downloaded some zip folders and tried extracting the nki files from them like I normally do, only to find dll files instead. As was recommended, I copied the dll files, went to C:\Program Files\Native Instruments\VSTPlugins 64 bit, and pasted them there with all the other dll files for Kontakt. I opened Kontakt 6 to use the instruments, but there was no way to open them, despite the fact I copied the dll files into the VST plugins folder. How do I remedy this?