Hello THE, thanks for reading and responding,

Not sure how it started. I do download missed/unavailable TV programmes as torrents, and these are full of dodgy links and useless downloads, unfortunately. Avast usually does a great job of intervening and preventing trouble. Also have a daughter using PC, so who knows? When the messages started I think it was winexplorer.exe that was pointed to, but now it’s rundll32.

Running Win8.1, by the way.

D