If you've not installed WACUP as a portable install (if you have, you need to go to the advanced -> portable prefs page & allow 3rd party plug-ins to be loaded) otherwise from a quick check you need to run the installer from that site as an administrator & then select the WACUP install folder. It appears to work ok though the title of the DSP window might show gibberish text (something I've still to track down why that's happening for a number of plug-ins but it doesn't seem to affect them working).
Having such a feature natively provided as part of WACUP is on the existing TODO list but whilst plug-ins like this are working it's a lesser priority for me to implement my own for the time being.
-dro