What does your folder structure look like when supporting multiple languages in your software?

I’m adding localization support to my software, users can download the language packs that they need which are two files. To keep all these files separated I contain each language in its own folder. For example, here is my layout:

-MyApp MyApp.exe -Localization -1033 en-US.lang en-US.dict config.cfg 

Instead of using the languages LCID as the folder name would it be better to use the actual name? I see Microsoft using my setup quite frequently in its own software but what is the point when parsing an LCID generates more overhead than just parsing the language name?