Doctor Web Security Space is a highly reputed Russian Product. IT is also used by the Russian defense ministry.
TO get your 3 months key go to this site You Must Be Registered and Logged On To View "URL" BBCode Contents...
The site is in Russian. The first box is for your name and the second for your email. Then click on the green button on the side of the second box. Another box opens and a captcha code input is needed.
I could not receive my license as it kept on saying my email id is invalid. So try it and see.