You can do this for any Antivirus, tool, software to gain access for long time
1. Go to google.com
2.Type this syntax in search bar "94FBR Product name with desired software" for example :
e.g:- 94fbr Internet Download Manager
94fbr Microsoft Office 2013
Windows 7 94fbr etc.
94FBR was part of a Microsoft Office 2000 product key that was released on the internet that bypassed Microsofts activation system.Because it is a relatively uncommon term, when you add it to your search queries, it will generally return results of pages listing illegal serial numbers.
Now you can register any software fakely.... :D