INT 67 - LIM EMS - GET HANDLE AND ALLOCATE MEMORY
        AH = 43h
        BX = number of logical pages to allocate
Return: AH = status (00h,80h,81h,84h,85h,87h,88h,89h) (see AH=40h)
        DX = handle if AH=00h
SeeAlso: AH=45h

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