I have to work with different applications which are, in my opinion, not wisely-coded; they require the user to use specific regional settings. For example, some applications I use require that the user have an MM/DD/YYYY date format, while others require that the date format be YYYY-MM-DD.
Is there a known way to create some kind of "regional setting file" and launch an application in a sandbox with these settings? I'm looking for something less demanding than using a virtual machine.