)
Call the XMS driver "Reallocate extended memory block" function with:
AH = 0Fh
DX = handle of block
BX = new size of block in KB
Return: AX = status
0001h success
0000h failure
BL = error code (80h,81h,A0h-A2h,ABh) (see #02775)
SeeAlso: #02759,#02768