[SOLVED]Avira Security

Just download above from bb has licence key but when I ckick on it I get the following message. Windows can’t open this file needs to know what program you want to use to open it? can anyone advice me how to do this.
Thanks
Answer #1
Maybe it’s just a key file you copy to the installation folder..
Answer #2
Instructions:
Basic:
1.Right Click on any Key.
2.Hover ur cursor to "Open With" And Click on "Antivir License Manager"
Advanced:
1.Open up Avira.
2.Click Help --> License Management.
3.Click on hbedv.key link that is right above the button for Proxy settings.
4.Locate the file, say C:\Downloads\Avira...
5.U r done ..
Answer #3
Solved can now be locked. Thanks to you both, got it done, it just needed to be copied to installation folder. Once again many thanks.