>Hello
>
>There are several ways to internationalize an application and to translate all the strings, even with language change on the fly.
>
>But one issue remains: all the system message won't follow the language change: the system strings are contained in .DLL files such as VFP6RFRA.DLL for French or VFR6RENU. for English.
>
>Alas these files are loaded at launch time and even if i switch on the fly from french to english, the DLL won't swith from VFP6RFRA.DLL to VFP6RENU.DLL.
>
>Does anybody have an idea?

Bonjour Philippe,

Consider the following line:
"C:\Program Files\Infodons\infodons.exe" -LVFP6RFRA.DLL
It will launch the EXE with the French strings.

Now:
"C:\Program Files\Infodons\infodons.exe" -LVFP6RENU.DLL
It will launch the EXE with the English strings.

I do agree this is not the sort of "on the fly" solution you were expecting. But for the many cases where one user will be using your software in his language, that's appropriate. If you use a professional installer, it should be able to perform the install with the appropriate defaults for you.

José