[thopok]

In addition, LIP doesn't allow users to switch languages. Once a LIP is installed, all users using that machine will have the same User Interface (UI) language.

On a system with MUI, each user would be able to select his or her own preferred display language.
MUI products are available only through volume agreements from Microsoft.
Check %windir%\Mui for muisetup.exe and run the program to see available languages