I managed to get Starnet++ working using Pixinsight (the easiest way).
Here is a starless version. Its not bad and even though I have only used the program a few times I can see its going to work better on some images that others.
At a guess its going to work on images that are long exposures and that have a predominance of nebula in the frame.
The program can leave dark spots behind where some stars were. It does though make the image more like an impressionist artists painting.
https://pbase.com/gregbradley/image/170414812/large
Greg.