INT 2F - POWER.EXE - GET/SET ???

	AX = 5480h
	BX = direction
	    0000h get
	    other set
	CX = size of buffer (at least 0010h)
	DS:SI -> buffer
Return: AX = status
	    0000h successful
	    other error code
SeeAlso: AX=5400h,AX=5481h,AX=548Fh