Thanks to both of you. I really appreciate your help.
I have now removed some obsolete anti-spywary programs, scanned with MBAM (no malware found) and AntiSpyware ( a few tracking cookies removed).I
have completely re-installed ZoneAlarm which is now in "Learning mode". But the settings for "Generic Host Process for Win32 Services" are still the same:
I think I will just leave it till the learning period is over since it does not seem to give any problems.
I hva caught a virus (myself, not the computer) and since that is not so easy to remove, I will stay in bed for some days.