Mb string problem,

What settings do i need to set the mb srtings to on my server.
i currently have these

Code:

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Multibyte String        mbstring.detect_order                auto
Multibyte String        mbstring.encoding_translation                On
Multibyte String        mbstring.func_overload                0
Multibyte String        mbstring.http_input                auto
Multibyte String        mbstring.http_output                UTF-8
Multibyte String        mbstring.internal_encoding                UTF-8
Multibyte String        mbstring.language                Neutral
Multibyte String        mbstring.substitute_character        long

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Also is there anything i would need to put in my vshare root dir or will the main php.ini cover this?

Many thanks