Problem trying to Advise

[djavanci]

Hi. I'm developing a program that instantiates a COM executable. In my machine the problem doesn't occur, but in the machine of a colleague we have this problem. The source code are the same, without any modification. We are using Visual C++ 6.0 SP5, Win2K and WinXP. The code below are the code that works in one machine and in another doesn't work.

    HRESULT                       hr;
    IUnknown                    * pXXXXX;
    IConnectionPointContainer   * pCPC;
    IConnectionPoint            * pCPIXXXXXEvents;

    // Call COM service to create an instance.
    pXXXXX          = NULL;
    pCPIXXXXXEvents = NULL;
    pCPC               = NULL;
    m_pIXXXXXEvents = new CIXXXXXEvents(this);
    m_bComError        = TRUE;

    hr = CoCreateInstance(CLSID_XXXXX, NULL, CLSCTX_LOCAL_SERVER, IID_IUnknown, (LPVOID*)&pXXXXX);
    if (FAILED(hr))
    {
        pXXXXX = NULL;
        OutputDebugString("Failed to create XXXXX COM object");
    }

    hr = pXXXXX->QueryInterface(IID_IXXXXX, (LPVOID*)&m_pIXXXXX);
    if (FAILED(hr))
    {
        m_pIXXXXX = NULL;
        OutputDebugString("Couldn't QueryInterface for m_pIXXXXX");
    }

    //Asking ConnectionPointContainer.
    hr = pXXXXX->QueryInterface(IID_IConnectionPointContainer, (LPVOID*)&pCPC);
    if(FAILED(hr))
    {
        OutputDebugString("Couldn't QueryInterface for pCPC");
    }

    //looking for ConnectionPoint into this.
    hr = pCPC->FindConnectionPoint(__uuidof(_IXXXXXEvents), &pCPIXXXXXEvents);
    if(FAILED(hr))
    {
        OutputDebugString("Couldn't FindConnectionPoint for pCPIXXXXXEvents");
    }

    //Registering my interfaces.
    hr = pCPIXXXXXEvents->Advise(m_pIXXXXXEvents, &ulAdviseSFN);
    if(FAILED(hr))
    {
        // the error occurs here. The hr is equal -2147220990 and the I can't be advised from
        // the executable to my program.:((
        OutputDebugString("Couldn't Advise for m_pIXXXXXEvents");
    }

Anyone has any idea of what is happening and a suggestion of how to solve it? Thanks Dennis