Hi, DonZ63. All heuristics levels are set at normal. I will experiment with them. There is no heuristics setting for the Behavior Shield, but there are 3 checkboxes, and all are checked.

Hi, -Genesis- and cadremis. You both are quite right. I should update Sandboxie, and will do so. But every time I update / upgrade anything it brings another set of problems to be fixed. :slight_smile: The present setup has worked great for a couple of years, and I hate to start changing it, but I will.

Thanks for the suggestions, will try them and post back whatever happens.

I think, though, that something significant has changed in the Behavior Shield within Avast!. It is maybe something for the developers to analyze. Just a suggestion. :slight_smile: