Yup, that fixed it. I just did a search on my computer for that dll (since a lot of other software uses it as well) and copied it into the animation paper folder here: C:\Program Files\Animation Paper
Yeah, looks like they need to ship this dll with the exe since they compiled against it. You can probably just search the Interenet for the file and place it next to the animationpaper.exe file. I’ll give that a go and see if that fixes it.