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        DOS .EXE-file head (EXE)

        Offset Size   Contens
        -----------------------------------------------------------------
        00-01  Bytes  EXE-file signature - always 4Dh 5Ah
        02-03  Word   Lenght of image remainder (modulus 512)
        04-05  Word   Length of image in pages (div 512)
        06-07  Word   Number of relocation table items.
        08-09  Word   Header size in paragraps (used to locate
                      beginning of the load module in the file)
        0A-0B  Word   Minimum number of paragraphs required above the
                      loadet program
        0C-0D  Word   Maximum number of paragraphs required above the
                      loadet program
        0E-0F  Word   Offset of stack-segment in loadfile
        10-11  Word   Stack offset (value to place in SP after load)
        12-13  Word   File-checksum - negative sum of all the words
                      in the file, ignoring overflow.
        14-17  DWord  Initial CS:IP (offset from PSP)
        18-19  Word   Offset of relocation table within file
        1A-1B  Word   Overlay number (0 for resident part)