Cause: Windows Defender Real-time scanning quarantined the patched .dll because it contains a modified PE header (used to bypass activation).
Fix: Add your entire C:\Delphi folder to Exclusions in Windows Security > Virus & threat protection > Exclusions. Re-extract the files.
Right-click the main Delphi executable → Properties → Compatibility:
Running the installation as administrator can resolve issues with permissions: 2017 rev3 vfinal delphi cars fixed win10 install
After completing the install, perform the "Loopback Test."
If you get "Error 0x800706BA" (The RPC server is unavailable), your Windows 10 Firewall is blocking the local port. Go to Control Panel > Firewall > Allow an app > Add DelphiDiagnostics.exe to private and public. If you get "Error 0x800706BA" (The RPC server
Go to Configuration → VCI Manager → Select “Simulator” → OK.
Load a sample vehicle (e.g., Peugeot 308 2015) → Read fault codes.
While the 2017 Rev3 VFinal Fixed is a powerhouse, keep in mind: Go to Configuration → VCI Manager → Select
Cause: The Fixed version expects the cable to be in J2534 Pass-Thru mode, not Raw CAN mode.
Fix: Open the Tools folder and run J2534_Config.exe. Set device type to "Delphi Mongoose" and Baud rate to 115200. Save. Reboot.