Access violation error using smart pointer stored in GIT

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Hello,

I am getting the access violation error while trying to access a smart
pointer stored in GIT. I have a simple configuration class, that
registers a pointer in Global Interface Table in the constructor as
follow:

CConfig::CConfig()
{
// COM smart interface pointer
_CommunicationPtr pConfig;
HRESULT hRes = pConfig.CreateInstance(__uuidof(Communication));
_ASSERT(SUCCEEDED(hRes));

_id = pConfig.GetIID();

// create Global Interface Table(GIT)
hRes = CoCreateInstance(CLSID_StdGlobalInterfaceTable,
NULL,
CLSCTX_INPROC_SERVER,
IID_IGlobalInterfaceTable, (LPVOID*)&_pGIT);
_ASSERT(SUCCEEDED(hRes) && _pGIT);

// store interface in GIT
hRes = _pGIT->RegisterInterfaceInGlobal(
pConfig.GetInterfacePtr(),
_id,
&_gdwCookie);
_ASSERT(SUCCEEDED(hRes));

pConfig = NULL;
}

When in the method I retreive this pointer from GIT and try to use it.
That is where I am getting "Access violation" error.

char *CConfig::CustomerID(void)
{
CoInitialize(NULL);

// COM smart interface pointer
_CommunicationPtr *pConfig = NULL;

// get proxy to interface from GIT
HRESULT hRes = _pGIT->GetInterfaceFromGlobal(_gdwCookie,
_id,
(LPVOID*)&pConfig);

_ASSERT(SUCCEEDED(hRes) && pConfig);

char* value = NULL;

// THIS IS WHERE ERROR OCCURS
value = (*pConfig)->CustomerID;

pConfig = NULL;
CoUninitialize();

return value;
}

Please advice.

Thanks in advance,

Alex.

.

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