If you want to have support, patches updated etc. you need to have the enterprise version.
7.1.1 is really old, so I recommend to use a newer version anyway.
The best is to get in contact with a Red Hat representative using this page -> https://access.redhat.com/management/
If you have a subsription you can go ahead and use EAP6 (which is based on JBoss AS7) to deploy your application.
EAP6.4. is the latest version and under full maintenace and you get bugfixes and security patches for some years from now
Hope that helps, let me know if there is something I can help with that process
Appreciate your instant response but tentatively how much it will cost do you any idea ?
Is the license based on CPU or OS ?