INT 62 u - FGDRIVER v3.03 - "FG_INITEMS" - INITIALIZE EXPANDED MEMORY USE
        AX = 004Ch
Return: AX = status
            0000h successful
            FFFFh expanded memory manager inaccessible or not installed
Notes:  For FGDRIVER v1.10, this function was "FG_FLPIMAGE" (see AX=002Ch);
          "FG_INITEMS" was AX=00A0h
SeeAlso: AX=0002h,AX=004Eh

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