Nyquist plug-ins

Does anyone know of a way to add Nyquist plug-in to Audition?  You can to Audacity, but I no longer like using Audacity, but there are one or wo Nyquist plug-ins that I'd like to use in Audition, however, when I try to add them via the Audio Plug-in Manager in Audition, it simply won't find them.

Any help is greatly appreciated.

Cheryl Clark