1.Please visit Bitdefender promotion web page
,enter in your name,email address and click ‘Submit’.This web page is Russian language,you can use Google translate getting the language preferred.
2.The 90 days product key is containing inside you register email address.Actually this product key is for Bitdefender Internet security 2008 but you can use it in 2009 version
3.Download Bitdefender Internet Security 2009 32 bit or 64 bit .After installation completed,a registration wizard will appear,then enter in the product key that applied,then you can use it for 90 days with free ( you also can continue with 30 days trial run,apply the 90 days product key as 30 days almost finished ,total you have 120 days free for use).
Please grab it as soon as possible.