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Asked: 2026-05-14T20:59:06+00:00

How can I be sure that a file passed to my program is a

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How can I be sure that a file passed to my program is a valid exe file ?

actually my program takes a file as input and runs it, but user can input any file so I have to make sure that the input is a valid exe.

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1 Answer

  1. Editorial Team

    It depends on your definition of “validity”.

    • If you want to validate that the user passes an “EXE” file, check the file extension.
    • If you want to validate that the user passes a runnable EXE file (regardless of extension), check the first two bytes of the file. They should contain the value “MZ”.
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