SO softubes saturation knob is an included pro channel plugin.
I obtained it as part of a softube upgrade package and tried to install it to use it as a standalone plug.
It installs, is in my vst folder, but the vst scan wont pick it up.
 
So I am wondering if anybody else sees this? BTW the plug in is free if anyone wants to try this

I am guessing, if it's the same vst.dll Sonar will disregard that one and use what's built into its core.