Problem installing plugins in Wavelab7

I just recently downloaded the Flux Bittersweet II plugin, and I am having trouble installing it in Wavelab 7. I’m dropping the .dll file into the shared VST folder, but it doesn’t show up in Wavelab even after I scan for plugins on relaunch. I successfully installed PSP Mastercomp some months ago, so I’m not sure what I’m doing wrong. Can someone please go over exactly how to install a plugin so that it shows up in Wavelab 7?