Just upgraded to Max 5.07 and was happy to notice that WaveShell support was added to the vst~ object. How to do this is not in the vst~ help file but in the reference file. I thought I would share this simple patch that I setup to load a few of the Waves plugins I have.
The main trick is that you need to send the name of the waveshell and the code of the waves plugin you want to use. To obtain a list of codes load the waveshell and send the vst~ object a printids message.
Here is my simple patch... Hope it helps those of you wanting to integrate waves plugins into your patches or apps.