You may get a more direct answer to your question in another newsgroup:
microsoft.public.windows.vista.music_pictures_video
"Marc" <Marc@xxxxxx> wrote in message
news:B0E43C30-7AB6-4936-8CB4-7E4636DFFC62@xxxxxx
Quote:
> Hy,
>
> I create a project with Movie Maker on Vista. But tonight, after 5 days
> of
> work on that same project, MM refuse to open my same project and pop-up :
> Not
> implemented.
>
> A solution for me ?
>
> Thanks
> Marc