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I’ve tried to port my MDI application with Prof-UIS 2.90 to Visual Studio 2010 from Visual Studio 2008 but now it returns an assert in:

CExtPageNavigatorWnd::CExtPageNavigatorWnd()
    : m_bDirectCreateCall( false )
    , m_bInitialized( false )
    , m_bUpdatingLayout( false )
    , m_bAutoDeleteWindow( false )
    , m_rcPageNavigatorClient( 0, 0, 0, 0 )
    , m_rcPageNavigatorInnerArea( 0, 0, 0, 0 )
    , m_rcItemCaption( 0, 0, 0, 0 )
    , m_rcCollapsedItemsArea( 0, 0, 0, 0 )
    , m_rcExpandedItemsArea( 0, 0, 0, 0 )
    , m_rcSplitter( 0, 0, 0, 0 )
    , m_bSplitterMouseTracking( false )
    , m_bSplitterMouseHover( false )
    , m_bCanceling( false )
    , m_bItemsMouseHover( false )
    , m_nMinPageAreaHeight( 200 )
    , m_nExpandedItemsDesired( 0 )
    , m_bSplitterVisible( true )
    , m_bSplitterEnabled( true )
    , m_hSizeCursor( NULL )
    , m_hHandCursor( NULL )
    , m_pCurrentItem( NULL )
    , m_lParamCookie( 0 )
    , m_hWndNotificationReceiver( NULL )
    , m_hFont( NULL )
{
    VERIFY( RegisterWndClass() ); <<<<-------------------- it fails here
    m_sCommandProfile.Format(
        _T("PageNavigator-%p-%d-%d"),
        this,
        int( ::GetCurrentThreadId() ),
        int( ::GetCurrentProcessId() )
        );

    PmBridge_Install();
}

Is there anything I could do to fix this issue ?

Could you please step into the CExtPageNavigatorWnd::RegisterWndClass() method in debug mode, then step into ::AfxRegisterClass() method and take a look at where the real error occur? Then modify the CExtPageNavigatorWnd::RegisterWndClass() method source code by adding the GetLastError() API invocation. The result returned by the GetLastError() API explains which kind of problem actually occurred.

I’m really sorry. It was my fault, I added a path to the system variables that pointed to Prof-UIS DLL built with Visual Studio 2008 and I tried to debug my application from inside VS 2010.....I apologize for this stupid mistake.