Serialization

I've a class to serialize. I've done the basic things for
serialization

class EmployeeInfo : public CObject
{
public:
    DECLARE_SERIAL(EmployeeInfo)

    CString m_csName;
    CString m_csDesignation;
    int m_nEmpID;
    int m_nAge;
    int m_nSalary;
    Sex m_eGender;
    virtual void Serialize( CArchive& ar );
public:
    EmployeeInfo(void);
    ~EmployeeInfo(void);
    EmployeeInfo& operator =(const EmployeeInfo & empInfo_i );
};

Now I am using a CArray<EmployeeInfo> m_EmpInfo;

CFile file( "EmployeeInfo.bin", CFile::modeCreate | CFile::modeWrite |
CFile::typeBinary );
    CArchive ar( &file, CArchive::store );
    m_EmployeeInfoArr.Serialize( ar );

This is the way I am serializing the objects. But the
EmployeeInfo::Serialize is not getting called at the time of
serializing the objects. What could be the problem?

I also tried to override SerializeElements functions globally defined
as follows

template<> void AFXAPI SerializeElements(CArchive& ar, EmployeeInfo*
pElements, INT_PTR nCount)

But its not working. Link error occurs.

Thanks & Regards,
Sarath