Eicar is a harmless test "virus" that is used to test that anti-virus applications are actually functioning correctly. Eicar will NOT and can NOT harm your computer.
Info here:
Tell her dad to save his 5 bucks and use, SuperWinSpy since it is free.
History remains in the index.dat files, even after it has been "deleted" by you children. Anyone can, with this small free software, decode these hex files into plain text.
It may only mean that there was dating advertisments on another website that he visited.
Cookies come not only from the website itself, but also from 3rd party advertising servers.
Make sure that your security settings are such as to allow Active-X controls.
Easiest way....In Internet Explorer go to Tools > Internet Options > Security > Internet > set the security level to the default setting.
The default setting is "Medium" if you are using Internet Explorer 6. And...