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Properties - Ranges - Code Page Character Range
This field is used to specify the code pages encompassed by the font file in the mappings for the Windows platform. If the Windows platform is Windows Symbol, then the Symbol Character Set should be selected.
If a code page is selected then the code page is considered functional. The determination of "functional" is left up to the font designer, although character set selection should attempt to be functional by code pages if at all possible.
Note: Symbol character sets have a special meaning. If the Symbol Character Set is selected, and the font file contains a Windows Symbol platform, then all of the characters in the Unicode range 0xF000 - 0xF0FF (inclusive) will be used to enumerate the symbol character set. If this code page is not selected, any characters present in that range will not be enumerated as a symbol character set.