)
Call the XMS v3.0 driver "Get extended EMB handle information" function with:
	AH = 8Eh
	DX = handle
Return: AX = status
	    0001h success
		BH = block's lock count
		CX = number of free handles left
		EDX = block size in KB
	    0000h failure
		BL = status (80h,81h,A2h) (see #02775)
BUG:	MS-DOS 6.0 HIMEM.SYS leaves CX unchanged
SeeAlso: #02764,#02772,#02774