Lesson plan

Linear Executable

Linear Executable (LE) is file format for executable code designed for 32-bit protected mode operating systems. Originally used by the OS/2 operating system and adopted by various DOS extenders, it also served as the file format for Virtual Device Drivers (VxD) in early versions of Windows, including Windows 3.x and the Windows 9x series. The malleability of LE files attracted interest in using them for steganography.

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Article summary

Linear Executable (LE) is file format for executable code designed for 32-bit protected mode operating systems. Originally used by the OS/2 operating system and adopted by various DOS extenders, it also served as the file format for Virtual Device Drivers (VxD) in early versions of Windows, including Windows 3.x and the Windows 9x series. The malleability of LE files attracted interest in using them for steganography.

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Discussion questions

  1. Summarise the article in your own words. Which single claim would you verify first, and why?
  2. Which claim in this article is most likely to be revised as the sources update? How would you check its current status?
  3. If two sources disagreed about one of these facts, what would you need in order to trust one over the other?

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Key claims and bibliography are generated from the same tracked claims and sources as the article page.