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: Use the System File Checker (SFC) by running sfc /scannow in an elevated Command Prompt to repair corrupted system-level dependencies.

Sometimes, simply re-registering the DLL can solve issues. You can do this by opening a Command Prompt as Administrator and typing: vnetdrvdll

If you do not recognize any of the above, you should investigate further. : Use the System File Checker (SFC) by

"The code execution cannot proceed because vnetdrv.dll was not found." vnetdrvdll

Ethernet Vector Network Driver with CANoe - KnowledgeBase - Vector Support. Vector Support Virtual Network Device - Microsoft Q&A