Now, several days later, I experience no problems anymore. I can not explain this because I could not trace any updates.
Very strange but I count my blessings of course
I could trace that the day before there were updates of Firefox and my anti virus program F-secure. The exercise with the nirsoft utlity was interesting and exciting. I suspect that two F-secure extensions are the culprits. When I disable them, Freecommander ...
I hope someone can heklp me. Yesterday everything was fine. Today after starting freecommander, when I highlighted a few files with the intention of adding them to an archive after a right mouse click action, there is this error message concerning fccontextmenu64: