Despite its age, version 2.24 provides the foundational tools required for professional ECU remapping: WinOLS - Error on installation : ECU Tuning Software
: Newer versions handle checksums and map recognition via online servers, which 2.24 cannot do reliably. Winols 2.24 Windows 10
Create a batch file ( WinOLS_Fix.bat ) with the following: Despite its age, version 2
Do you still run WinOLS 2.24? Let us know in the comments what dongle you’re using. Despite its age