1.5.4 Notes on OS settings
Navigation Platform does not support the supplementary Unicode characters included in the JIS X 0213 standard that extends the range of characters available in Windows Vista and Windows 7.
Navigation Platform does not support the following characters:
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Characters outside the Basic Multilingual Plane (BMP)
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Characters whose Unicode code point is within the range from U+10000 to U+10FFFF
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Characters represented by UTF-16-encoded surrogate pairs