All you need for a free license key of Kaspersky Antivirus is to register with your MSN Live account in the site mentioned below. the site is in Chinese [Mandarin] , so you may need the google toolbar to translate the text .
MSN China in collaboration with Kaspersky Antivirus is offering a Free Kaspersky Antivirus 2010 activation code to its users.
Recommended : Kaspersky Mobile Antivirus
Step 1. After you go to the site above , find and click the Orange Button , as shown below.
Step 2. In the next page, you will be asked to enter your Windows Live login information.
Step3. After you sign in , a new page will appear with the Activation Key. Copy this Key and enter to your Kaspersky Trial Version to get Free 180 days use.