Executable file difference extraction/update system and executable file difference extraction method
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United States of America Patent
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May 12, 1998
Grant Date -
N/A
app pub date -
Nov 21, 1994
filing date -
Mar 22, 1993
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A header analyzing unit extracts a header area and each table unit area in each of an old and a new executable files, and calls a difference extracting unit for each area. A segment data associating unit associates a segment data in the old executable file with a corresponding segment data in the new executable file, and calls the difference extracting unit for the associated areas. A resource associating unit associates a resource data in the old executable file with a corresponding resource data in the new executable file, and calls the difference extracting unit for the associated areas. The difference extracting unit extracts the differences in byte units between the new and the old executable files from start to end in a specified area, and saves the differences in an update file.
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