I managed to reinstall NOF 2015 on my new computer and it worked fine. Then I ran the update1 and rebooted, and now NOF will not load. It appears in Task Manager, but I cannot access the program. I checked my McAfee antivirus and it shows NOF listed as having access to the necessary ports. Has anyone ever had this problem? I have had NOF 2015 running fine on my previous Windows 10 computer since I bought it early in 2016.
Anton tells me that NOF is now obsolete and no further updates are likely. There appears to be no support available except through this forum.