It is not automatically loaded in Plug-in Manager.
When I tried loading the plug-in manually, I got this error:
// Error: Unable to dynamically load : C

The specified module could not be found.
So I added this to the beginning of my path variable
C:\Program Files\Side Effects Software\Houdini 14.0.258\bin
Now, I am getting this error instead:
// Houdini version: 14.0.258
// Houdini Engine version: 1.9 (API: 11)
// Houdini Engine initialized successfully.
// Error: line 1: Cannot find procedure “houdiniEngineCreateUI”. //
What additional paths should I add? Why are these paths not automatically config'ed like usual?
It's Maya 2015 Extension 1 +SP5 on Windows 7 Pro SP1
Thanks!