Variant And Safearray

why in this part of the code ....after adding the safearray of BSTR's to the Variant...
when i try to fetch the contents of the variant ..it returns empty values?

std::map<int,CString> bsVector;
std::map<int,CString>::iterator iter;

CReadExcel excel;
_bstr_t filename="C:\\test3.xls";
std::vector<CString>vector;

excel.ExtractFormulaFromExcel(filename,bsVector);

BSTR * bstrValTemp=bstrVal;


for(iter=bsVector.begin(); iter!=bsVector.end();iter++)
{

_bstr_t bstrFinal(iter->second);

*bstrValTemp++=bstrFinal.copy();
}

SAFEARRAYBOUND rgsabound[1];
rgsabound[0].lLbound = 0;
rgsabound[0].cElements = bsVector.size();

VariantInit(&m_vtSource);
VARIANT vtTarget;
VariantInit(&vtTarget);

m_vtSource.vt = VT_BSTR | VT_ARRAY;
m_vtSource.parray = SafeArrayCreate(VT_BSTR,1,rgsabound);


for(long k=0;k<bsVector.size();k++)

SafeArrayPutElement(m_vtSource.parray,&k,bstrVal[k]);




try
{


HRESULT hr;
_bstr_t* pData;
int count=int(m_vtSource.parray->cbElements);
hr = SafeArrayAccessData(m_vtSource.parray, (void**)&pData); //access the array stored in the varriant.

for(int i = 0; i < count; i++)
{
_bstr_t bst(pData[i]);
AfxMessageBox((LPCTSTR)bst.copy());

}


SafeArrayUnaccessData(m_vtSource.parray);



//HRESULT hr=mapInterface->RetrieveTargetFormula(src,m_vtSource,&bstr,&vtTarget);
}
catch(...)
{

mapInterface->Release();
}