Pete, thank you for your quick reply. However, you fail to put yourself in the shoes of someone who has never heard of any of those terms before, and has no clue as to their meaning, or a person who has only just visited and registered for this site.
I apologise for misposting, but the FAQ sub-forum was greyed out (as, understandably was "announcements) leaving 3 options. "User Contributions" seemed the obvious sub-forum, especially as many would be downloading FSFS Pro 2013 and benefit from a succinct response.
I eventually found your reply by doing a word-search in Firefox, but I have no idea even which sub-forum you have placed me in. There seems to be nothing above beyond "FSUIPC Support Pete Dowson Modules".
Indeed it was not my intention to trigger hostility on anyone's part, but as you feel it is impossible to see confusion on the Shiratti page, please allow me to quietly explain. First let me say that I appreciate that your software is offered free of charge, presumably provided by you for the enjoyment of the community. That deserves acknowledgment and gratitude, which I willingly express now. Thank you for that service to myself and others.
The version I have is FSFS Pro 2013, as I did mention thrice in my post. So now I must ask, "is there more than one version that goes by that name?" (My help page doesn't go beyond saying "No P3D found, and that I have FSFlying School version 2.3.).
Nowhere could I see FSFS Pro 2013 mentioned on the Schiratti page. It DOES mention: FSX, Prepar3d and FS2004 which I understand is a Microsoft FS. I also understand from your reply that it is aka FS9 - unhelpful as FS9 is NOT mentioned on the Schiratti page. I also see a version dated 2013 but the version of FSUIPC is 3.99 and FSFSPRO 2013 says it needs 4.9. I also understand that Microsoft ditched Flight Simulator software development in the early 2000's (I think 2004).
Now given that FS2004 (or FS9) is Microsoft, it would not seem to be the one to download to use with FSFS 2013 Pro. However, I know nothing of FSX so I don't know if that is an appropriate version.
Peter, you have picked my use of the word "program". But hey, I won't go into that one.
Now, all I asked for was which version do I download for FSFS Pro 2013. It seemed a simple enough question, not needing hosility. Should I download the FSX version or will it cause me problems?
At the same time, it now seems to me that given the "No P3D found" message, I'm probably going to have to download another component. Is this the case?