INT 2F - PRINDIR v9.0 - SET HIGHLIGHT TEXT COLOR                                
	AX = 7F07h
	DH = new attribute for highlighted text
Return: AX = status
	    0000h successful
SeeAlso: AX=7F00h"PRINDIR",AX=7F01h"PRINDIR",AX=7F06h"PRINDIR",AX=7F08h