Always sign your SFX executable with a valid code-signing certificate. Also, avoid extraction to %TEMP% if possible; use a fixed directory like %ProgramData%\YourCompany .
Luxury buyers fear counterfeits. Program your SFX module to emit a specific mechanical click or a whisper ("Authentic"). If the box doesn’t make the sound, the product is fake. It adds a layer of anti-counterfeit security that visuals cannot replicate. Repack.me Sfx Module