I downloaded the file, ran the scan (which took a long time), deleted the files after the scan, and rebooted my computer. When the computer restarted I still got the pop-up. I went to Programs and Features and the DVDACCSS program was gone. I went to the "C:" drive and the files were still there but when I deleted them - they did delete.
However, I then had all kinds of trouble with 'Outlook' and my mail. Also my IE was very very slow and didn't work for most of the time. After two hours of setting my mail accounts agin and rebooting twice more the speed came back to the internet and my mail also seems to be working OK. On the last 2 reboots, the pop-up DID NOT come back. So, you helped me solve the problemeven if it wasn't as straight forward as it seemed. Thanks