HRESULT hr;
CSmartPtr pCar;
CSmartPtr pEngine;

hr = CoIntialize( NULL );
assert( SUCCEEDED( hr ) );
hr = CoCreateInstance(
CLSID_Car,
NULL,
CLSCTX_ALL,
IID_ICar,
(void**)&pCar );
if ( (bool)pCar ) {
pEngine = pCar; // QueryInterface here
if ( (bool)pEngine ) {
pEngine->Start();
Drive( pCar );
pEngine->Stop();
}
}
CoUninitialize();

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