OK,
in your absence I hope to have solved my problem

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I removed the files listed as 'infected" in the last Kwaspersky report and then I de-installed livemessenger. Computer restarted. None of the files appeared again
I run another scan with McAfee and nothing found. Again computer restart
Then dowloaded LiveMessenger and installed it. Started it up and nothing strage happes. (before, when infected, I could not log in as the startupscreen seemed to be 'taken over').
So as far as I am concerned the problem seems to have disappeared.
If you have reason to 'correct me' having read the last kaspersky log and hostfile-report, please do so!!!
best regards and many thanks so far.
rosedaniels