At 08:59 26/02/2010, you wrote: Thank you for your prompt response! The current implementation works just fine. It looks like that we just need to separate the *default base directory*, from another *application-specific base directory*. I'd *simply* do the followings: - Add MAExternalFileModel to the Smalltalk start-up list to ensure that the default value gets automatically updated. - Add an alternative class instance variable, for those applications that would need to reference a specific directory (without automated update). Does this make sense? Otherwise, the issue appeared since I'm used to copy my image from a *dev* directory to a *prod* directory, before executing my distribution generation script (sort of "PRDistribution new register"). I addressed the issue by simply adding to that script *MAExternalFileModel initialize*. Regards, Reza