Hello all. This is my first post. I hope you can help. I've just now taken the plunge into using Simconnect instead of doing any further development with the Panels and Gauges SDK. I'm also trying to mix things up a little and write my interface in OO C++ rather than straight C. However, I've hit a roadblock when using Visual C++ 2005 Express Edition when trying to pass my callback function to SimConnect_CallDispatch. The error I get is on line 124 in the SimInterface.cpp file. This compiler gives me compiler error (error C3867) when I try to call my DispatchProc function. The full description of the error is: "Error C3867: 'CSimInterface::SimDispatchProc': function call missing argument list; use '&CSimInterface::SimDispatchProc' to create a pointer to member". So, I try to use an "&" in front of CSimInterface::SimDispatchProc and now receive the following error: "Error C2664: 'SimConnect_CallDispatch' : cannot convert parameter 2 from 'void (__stdcall CSimInterface::* )(SIMCONNECT_RECV *,DWORD,void *)' to 'DispatchProc'. There is no context in which this conversion is possible" Does anyone know how to solve this problem? I have attached my code.