Memory leak in ADODB Connection15::Open method

We have a client server application using ASP, ATL COM and SqlServer. We
have 
found 36 bytes of memory leak in Connection15::Open method when we ran 
Rational Purify and we have no idea why it is happening. Here is the
example 
code.

"dbbase.cpp"
------------------
void CDBBase::CreateDBHandle (CDBBase& pObj, bool bReadonly)
{
	CreateDBHandle (bReadonly);
	pObj.CopyDBHandle (this);
}

void CDBBase::CopyDBHandle (CDBBase* pObj)
{
	m_pConn = pObj->m_pConn;
	m_bDBHandleCreated = false;
}

void CDBBase::CreateDBHandle (bool bReadonly)
{
	if (m_pConn == NULL)
	{
		m_pConn.CreateInstance (AdoGuids.m_Connection);
		
		if (g_CommandTimeout == -1)
			InitQueryTimeout();
		
		m_pConn->CommandTimeout = g_CommandTimeout;

		m_pConn->Open ( 
			m_bstrLogonString, 
			bstrEmpty, 
			bstrEmpty,
			ADODB::adConnectUnspecified );

		m_bDBHandleCreated = true;
	}
}


"msado15.tli"
-------------
inline HRESULT Connection15::Open ( _bstr_t ConnectionString, _bstr_t 
UserID, _bstr_t Password, long Options ) {
    HRESULT _hr = raw_Open(ConnectionString, UserID, Password, Options);
    if (FAILED(_hr)) _com_issue_errorex(_hr, this, __uuidof(this));
    return _hr;
}

Purify is showing a memory leak of 36 bytes in Connection15::Open method 
above.

[W] MLK: Memory leak of 36 bytes from 1 block allocated in 
ADODB::Connection15::Open(_bstr_t,_bstr_t,_bstr_t,long) 
[ImplementationLibrary.dll]
        Distribution of leaked blocks
        Allocation location
            LocalAlloc     [C:\WINNT\system32\KERNEL32.DLL]
            ADODB::Connection15::Open(_bstr_t,_bstr_t,_bstr_t,long) 
[o:\applogic\interm\debug\sup****tlibrary\msado15.tli:1229]
                }
                
                inline HRESULT Connection15::Open ( _bstr_t 
ConnectionString, _bstr_t UserID, _bstr_t Password, long Options ) {
             =>     HRESULT _hr = raw_Open(ConnectionString, UserID, 
Password, Options);
                    if (FAILED(_hr)) _com_issue_errorex(_hr, this, 
__uuidof(this));
                    return _hr;
                }

            CDBBase::CreateDBHandle(bool) 
[d:\broker\common\develop\sup****tlibrary\dbbase.cpp:121]
                            m_bstrLogonString,
                            bstrEmpty,
                            bstrEmpty,
             =>             ADODB::adConnectUnspecified );
                
                        //m_pConn->PutCursorLocation(ADODB::adUseClient);
                        // NOTE: Above line is necessary for fetching 
resultsets and output parameters.

            CDBBase::CreateDBHandle(CDBBase&,bool) 
[d:\broker\common\develop\sup****tlibrary\dbbase.cpp:150]
                    EXTLOG ("CreateDBHandle(): creating and copying DB 
handle");
                #endif
                
             =>     CreateDBHandle (bReadonly);
                    pObj.CopyDBHandle (this);
                }

We are using MDAC version 2.81, Visual C++ .NET, Microsoft Development 
Environment 2003 and Microsoft .NET Framework 1.1

Any help regarding the memory leak fix would be greatly appreciated.

Thanks,
-amar