Create new Language (culture)?

Am trying to do a similar thing to this old thread for a new client that needs a few custom languages like Austian-English.

Does Umbraco still use CultureInfo from the system? I generated a list of system languages and they differ to the ones in the v7 CMS.

Using this technique, I am still unable to generate a new language in the back end. It’s a big client and we are trying our best to get them onto Umbraco and this is a clincher.

Does anybody have a solution to this? Or can point me in the right direction?

Thanks in advance,

Adam

(Using v7.2)


This is a companion discussion topic for the original entry at https://our.umbraco.com/forum/71148-create-new-language-culture