thanks for your answer. Unfortunately it was exactly the answer which I expected. You are recording feature requests but they will be never realized. I wrote the word "promised" within quotes. Funnily, 2 of 5 of the suggested topics which I can see right now while writing this have the same problem (one from 2007 and one from 2012).
I used SmartInspect in VS2015 without problems. But it's strange if you don't even put any effort in updating the installer.
I agree with you that SmartInspect is a mature software and a great product but that's no reason to stop development.
Wish you all the best and thanks for clearification.