I use a software (Freemaster from NXP) which support several USB2CAN interfaces. My favorite interface Peak PCAN adapter is not supported. Every supported CAN interface has a DLL which has more or less the same functions: OpenInterface(device,Index,Channel,Baudrate); SendMsg(…); ReceiveMsg(…). I need you to write a DLL which make the [login to view URL] (Peak devices) behaves like e.g. [login to view URL] (ZLG devices). I attached the two Delphi Dll headers and a small sample program.