INT 21 - DOS 3.0+ - SET COUNTRY CODE                                            
	AH = 38h
	DX = FFFFh
	AL = 01h thru FEh for specific country with code <255
	AL = FFh for specific country with code >= 255
	   BX = 16-bit country code (see #01400)
Return: CF set on error
	    AX = error code (see #01680 at AH=59h/BX=0000h)
	CF clear if successful
Note:	not supported by OS/2
SeeAlso: INT 2F/AX=1403h