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If he was coding in .NET, he used ConfuserEx (free, open-source). It renames variables, encrypts strings, and makes the code unreadable. If he was coding in C++, he had to rely on compiler flags (like MSVC's /O2 and removing debug info) or LLVM-Obfuscator , a free tool that compiles code in a way that confuses decompilers.
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If he was coding in .NET, he used ConfuserEx (free, open-source). It renames variables, encrypts strings, and makes the code unreadable. If he was coding in C++, he had to rely on compiler flags (like MSVC's /O2 and removing debug info) or LLVM-Obfuscator , a free tool that compiles code in a way that confuses decompilers. enigma protector alternative free
To bundle your application into a single executable without dependencies: Enigma Virtual Box (Low-cost, not free but affordable) If he was coding in
