In recent years, community-driven, open-source scripts (like those found on GitHub) have become the gold standard for activation because their code is transparent and less likely to contain hidden backdoors compared to old .exe binaries like Re-Loader.
A standard Re-Loader executable is usually between 1.5MB and 2.5MB. If your file is significantly larger (e.g., 20MB+), it likely contains bundled adware or malware.
(or the year the site you downloaded it from was active).