Yes, I did the same, but I'm unsure if it's the proper file or if there are limitations because if's from the demo-version. Could anybody from the team give a clear answer here, please? I hope you'll fix this in the download.
I doubt there are any differences in the file between the demo version and the full game. .dll files don't usually have different versions. But it would be good to hear from someone on the dev team; at the very least, the missing file should be fixed in the download for the full game.