I've checked it out for a few mintues - but had to manually register Colins RichTip.dll,
to make it work.

Not sure, if you used the regfree approach per DirectCOM against the RC5-libs
(from inside your own executable) ... as we spoke about in a recent thread...

In case you did (within your Exe you creating a New_c entry-point for the RC5 regfree) -
you will need to do the same *within* the RichTip.dll-Project as well (creating New_c regfree).
(alternatively you could include Colins Class as a Private one, directly into your Std-Exe-Project).

Else looking nice (and your knowledge about Vectorizing-Effekts is amazing) - but now,
that you have the RC5-libs "on-board" anyways, you could optimize and straighten out
a few things I noticed:

- e.g. the dragging of your "processing-nodes" is not as fluent as it could be
(I'd suggest using a cWidgetForm-Panel on your Main-Screen and using a cwProcessing-Widget
for your draggable Processing-Nodes-Containers).
There's Widget-Tutorials on vbRichClient.com, which give an introduction in this regard,
making all kind of Hover-Effects easy as cake (e.g. above your connection-points) - and
also using different MouseCursors of your own Design (directly from a PNG-resources)
would become very easy (there's an example for that in the Widgets-Tutorial).

Also your Kernel-Pre-Construction at Program-Startup (ending up in your Kernels-SubFolder)
takes quite a bit of time - and looking at, what these routines produce, you should be able to do
that with Cairo "in a blink of time" (even with a proper Alpha-Channel, saving as PNG instead BMP,
or even create these Kernel-Patterns "live, on demand") using Radial Gradients or the Gaussian-Blur
which is available on a cCairoSurface-Class - just ask appropriate questions about that,
when you need a "How-To"-Demo or something.

So, yeah - to sum my critcism up:
Your "backend-routines and filters" are outstanding - your frontend could use some
polishing (also got an error-message after a run, although the result looked as it should?).

Olaf