Visual Studio 2005 with SP1 Issue

I have an application which loads the Property Pages from another DLL.
In First Propertypage I have a timer which runs every 5000/1000 mille
seconds and query USB port to find one of the status of unit connected.

If I build this application in Visual Studio 2003 (installed in XP) and run
the binary in Vista it works fine.

If I build this application in VS2005 with SP1 & Vista patch installed in
Vista Machine, I get an assert. When I debug the application, in one place
there is a comment from Microsoft (Windows code)

"Warning: Creating dialog from within a COleControlModule application is not
a supported scenario"

My code as follows

BOOL ToolboxPluginDlg::OnInitDialog()
{
 CDialog::OnInitDialog();
 DrawDialog();
 CToolboxIni theIniCls;

 BOOL bRun = (BOOL)(theIniCls.GetNumber(STATUSMONITOR, RUNSTATUSMONITOR, 0,
            m_pToolboxCfg->GetPortType(),
            m_pToolboxCfg->GetIniFile()
            ));
 SetStatusMonitorRunning(bRun);
 if (m_bRunStatusMonitor)
 { m_pStatusMonitor = new CStatusMonitor(IDD_ERROR_DIALOG, m_pToolboxCfg,
m_sPluginSectionName, this);
 m_pStatusMonitor->Create(IDD_ERROR_DIALOG, NULL); // this line throws an
assert.
  if(m_pToolboxCfg->GetPortType() == PortNetwork)
  {
    m_pStatusMonitor->Start(5000);

  }else
   m_pStatusMonitor->Start(1000);

 }
 return TRUE;
}

The problem looks like VS2005 generated code. If I create Dialog using
DoModal() it works fine.

I am not sure what is the real cause.

Thanks in advance for your help