[Function] Default char type is unsigned. Defined when the /J option is specified. [Symbol] 
_CHAR_UNSIGNED
_ C H A R _ U N S I G N E D
_ C P P R T T I
_ C P P U N W I N D
_ D L L
_ M _ I X 8 6
_ M S C _ V E R
_ W I N 3 2
_ M T