He was deep into a timing belt job on a vintage '98 Jaguar, and he needed the torque specs from Autodata 3.45
Antivirus programs frequently flag Autodata emulators as "false positives" and delete the .dll or .sys files required to simulate the Sentinel key. your Antivirus or Windows Defender temporarily. E0209 Sentinel Key Not Found Autodata 3.45 Windows 7
Several factors can contribute to the E0209 Sentinel Key Not Found error: He was deep into a timing belt job