Hi Andre,
Thanks very much for the help.
The program dates from 2014, so it's not very old. Before the update it worked perfectly on Windows 10. But I'm not sure whether it officially supported Windows 10.
I am actually using Option 4 to disable updates. But something re-enables it every day, probably at midnight, so I have to disable it every day. Is there a way to make it permanent?
I'm ok with disabling updates. But, as I mentioned, two other guys have precisely the same problem. One tried to uninstall the update, but the uninstall failed, so he's stuck with the problem. The other doesn't want to disable updates.
So I would love to know if there is a fix for this problem caused by the update. One big clue is that it only causes a problem for the 64 bit exe, the 32 bit exe still works (but very slowly).
Thanks very much for the help!
Chris