Well I got an answer from Capt. Sim and it was basically just a "Go Fish".

You can't get any support from them for the demo because you don't have an order number to use at their support site, and after writing them to find a way to get support for a crashing demo, they told me to check the min requirements, and that the means I used to message them does not provide any support.

They told me to look at their system requirements page.
I had already told them that my system is a water cooled i7 6700K based Asus mobo, at 4.5Ghz, 32GB DDR4 Ram at 3200mhz, with a NVidia 980Ti SC+, but I have to assume they are suggesting that I need something better. (???)

So fortunately I'll have to look for a C130 on the many free sites I found ... because I won't buy something that crashes when I test it, and when I test it ... it definitely crashes, and I can't get any support from CS unless I buy it first ... which I won't do, not only because the demo crashes, but more importantly ... because of the response I got from Capt. Sim when I reported their catch 22 situation.

So my 2'nd post here is probably going to be my last.  :(

Too many free C130's (and all the other Capt Sim type of aircraft) for FSX, for me to mess about with a company like them.

On edit: I got a follow up email form CS.
They said "the Demo as created long time ago and may not be compatible with contemporary systems".
Wow ... I think I'll just back out now ... and 'most assuredly' without turning around! ;)