Hello.
The context is that I want to bypass System Events to do localization for me. -It is rather sluggish.
I have taken a trip into /System/Library/CoreSevices/Finder.app/Contents/Resources/English.proj and found the two files Localizable.strings and LocalizableCore.strings.
The format of those strings are like this: “AX19” = “action”;. Is there any tool that take for instance the key “AX19” and a fully qualified filename to the desired file, and then returns it’s value, or any other more (or less) “AppleScriptish” way to accomplish this, I will use Strings from Finder only.
Solved ASLG via Spotlight! it turns out that AppleScript has a command: Localized String where you can specify the strings file.
The next question is however: Is there a uniform way to classify the country codes for instance en_us into the group English? Or is there some other way to attain the name of an “lproj. file” for a language code. If your language code is en_us, is there then spelled out “English” in some property?
Edit: Never Mind it turned out that Yvan Koenigs Script object takes care of it all. 
All there is to be done is to actually open the files and pick the strings you need!.