Extract the [u:1ey5z8kh]folder[/u:1ey5z8kh] into your FL plugins folder (Image Line> FLStudio 11> Plugins> Fruity> Effects). The dll needs to be in it's own folder.
Edit: reuploaded fixed version (Sept. 2). ...
Is it morning for me or i became blind, but i seem to not find the option to remove FX plugin in mixer chanel on FL 12.1. Before this update there was Replace -> None.
Where is that gone now? ...