Version 9 may not run on Windows 10.
You may want to look into purchasing version 14.
Bob may well be right. Download the free trial of version 14 and see if it works.
If it does, you can try running version 9 in XP or Windows 7 compatibility mode -- but no guarantees it will work. (Though version 7 runs fine on my Windows 10, so...)
Thank you both. Yes, unfortunately I had already considered that it simply isn't going to be compatible with Windows 10...
I will definitely give the trial of 14 a go and see what happens. I had already tried the compatibility mode, Steve, and unfortunately it didn't do anything for me... Oh well. We'll give 14 a go and see what happens.