>I have an application compiled in VFP7.
>If I launch from it another application compiled in VFP9 it works fine but
>it is saw as it was compiled in 7. Is it possible to run this second app or exe (it's the same) in the version it was compiled ?
>If so how ?

A VFP APP uses runtimes version of calling application. A VFP EXE always runs with runtimes it was built with. Check Re: RUN command botching up SET PATH commands...1169622 for one of the ways to run VFP exe from inside other VFP program.