What is your browser & version?
What is your Flash Player version?
What is your KMPlayer version?
Thanks for your answer. Yesterday I have still uninstalled all Adobe programms. The note above appeared again, but could be clicked away and remained disappeared. Today I installed all programms again, including the KM-Player, and the note appeared no longer. That <Macromedia Flash ActiveX Control> from the note above is no longer present on the computer. And I don't know from where it came or what part of programm it is I once loaded... It seems that the problem is solved. Now there is installed Firefox 13.0.1 (x86 de) / Adobe Reader X - 10.1.3 (de) / Adobe Flash Player - 11.3.300.262 (64bit) / KM-Player - 126.96.36.199 (or is it 188.8.131.52 ?).
Oncemore thanks to you, Pat, for your efforts - and have a good time!
maybe I can help ...