![]() Then, opening the file on a supported operating system will run the executable file, which can do things like extract files, or perhaps start by asking users where the file should go. That means that the file is an executable file. What is possible is to make a "self extracting ZIP file". (The only way the file could prevent that is if the file is not actually a (proper) ZIP file.) ZIP files are just data, so the ZIP file cannot really perform any actions (data doesn't do that), so the ZIP file cannot prevent me from doing that. ![]() There are multiple programs that can handle standard ZIP files. If it is a proper ZIP file, even if there is a header that makes the file also be a proper EXE file, then I can use my own software to "open" the ZIP file.
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