I wrote an MFC program whose icon, tooltip and menus are available in systray.
When I right-click on the icon, not only my popup menus but also the taskbar
popup menu, such as, "Toolbars", "Adjust Date/Time", etc. are displayed.
If I right-click one more time, then only my menus are displayed. This
happens alternatively. In other words, if I click again, then both menus are
displayed.
I followed the exact steps that were posted on MSDN, such as,
afx_msg LONG CAutoUpdatesDlg::OnSysTrayIconClick( WPARAM wParam, LPARAM
lParam )
{
    switch (lParam){
    case WM_LBUTTONDOWN:
        OnSysTrayInstallupdates();
        break;
    case WM_RBUTTONDOWN:
        ShowTrayPopupMenu();
        break ;
    }
//    PostMessage( WM_NULL, 0, 0 );
    return 0;
}

void CAutoUpdatesDlg::ShowTrayPopupMenu()
{
    CMenu mnTrayPopup;
    mnTrayPopup.LoadMenu(IDR_TRAY_POPUP);

    POINT CurPos;
    GetCursorPos (&CurPos);
    CMenu *mnItem1 = mnTrayPopup.GetSubMenu(0);
    SetForegroundWindow();
    mnItem1->TrackPopupMenu( TPM_RIGHTBUTTON | TPM_RIGHTALIGN,
            CurPos.x, CurPos.y, this );
    PostMessage( WM_NULL, 0, 0 );
}

Is this a VC7 bug? Or am I missing anything?

TIA.