Q: What is MFI / Missed Features Installer? A: It is a set of ISOs that allow you to install features that
are missing in Windows XP, 2003, Vista, 7, ThinPC, 8.x and 10. For
instance, add Windows Mail from Windows 7 or Windows Calendar from Vista
to Windows 10, add Games and Themes from XP to Server 2003, among many
many other options.
Q: What is FFI / Future Features Installer? A: It was a project that added features released after Windows
2000/XP/2003 launch, hence the "Future" instead of "Missed". It was
later replaced by MFI5 for Windows XP/2003, which combines older
features with new features, but dropped Windows 2000 support.
