INT 21 U - Quarterdeck - QEMM-386 v6+ - GET ???
        AX = 4402h
        BX = file handle for device "EMMXXXX0"
        CX = 0006h (size of buffer in bytes)
        DS:DX -> buffer for ???
                first byte must be 01h on entry
Return: CF clear if successful
            buffer filled (see INT 67/AH=3Fh function 1B00h)
        CF set on error
            AX = error code (01h,05h,06h,0Dh) (see AH=59h)
Note:   this call always returns an error if Windows3 support has been disabled
          with the NW3 switch to QEMM386.SYS
SeeAlso: INT 67/AH=3Fh