The --39-LINK-- references are usually from threads from ~2010-2015. Those direct links are almost all dead.
It is a lightweight Windows application. Because it is older software, you may need to run it in "Compatibility Mode" for Windows 10 or 11. A Note on "Free Downloads" and Safety Vag Eeprom Programmer V1.19g Download Free --39-LINK--39-
: Reading login PINs (SKC) and managing immobilizer data. The --39-LINK-- references are usually from threads from
Golf MK4, Bora, Jetta, Passat B5/B5.5, Polo 6N/9N. Audi: A3/S3 (8L), A4 (B5/B6), A6 (C5), TT (8N). Seat: Leon (1M), Toledo, Ibiza. Skoda: Octavia MK1, Fabia MK1. Required Hardware: Polo 6N/9N. Audi: A3/S3 (8L)