Activation Bentley View V8i

Hello,

I have just downloaded Bentley View V8i software that is stated to be "free for use". 

After the installation process, Activation Wizard appeared that says to choose an approach to Bentley Licensing: SELECT Server, NOT-SELECT user (it wants some XML or plaintext key when selected), or the only option that allows me to use the SW: Only trial version, without the license.

Is this software really free for use? If so, where could I download any license key, please? 

Or, where should I register to obtain the SELECT license?

Thank you for your help