The German 'Chip' is giving away free F-Secure Anti-Virus 2006 licenses.
You get the licens here for free:
http://www.f-secure.de/chip
It's in German but i think it is easy to understand, but here a translation German - English
Ihre E-Mail Adresse - Your email Adress
Anrede: Herr - Mr.; Frau - Mrs.
Ihr Vorname - First Name
Ihr Nachname - Last name
Than klick on 'Daten senden' and the licens will be send to your e-mail.
A licença pode depois ser usada com qualquer versao trial, obtido normal/ por ex 