Hi Dutch,
tried the VS2013 runtimes. They were installed already, but I did a repair anyway. Still no good I'm afraid. I may have to put FSX back on & see if it works there.
Dave, or anyone having this problem, I have an updated Beta available that may solve the problem: http://fscaptain.net/downloads/MIG21MFN_Beta_160815.zip
Delete the whole MiG-21MFN folder and replace it with the new one. There are a few other fixes and changes rolled into there too.
Also, very interested to see if it works on FSX for you.
I have P3D v3.3.5.17625 and just tested this new beta and it works. So did the old one...but this radar is compiled under VS2008.
Dutch