/// <summary>
    /// Instantiates an IXMLDOMDocument from the MSXML runtime.
    /// Override this method to have full control over IXMLDOMDocument CoClass creation.
    /// </summary>
    class function CreateDOMDocument: IXMLDOMDocument; virtual;
    /// <summary>
    /// Initializes the list of possible IXMLDOMDocument CoClass GUIDS to create.
    /// The default list includes multiple versions of MSXML (6.0 down to 2.6).
    /// </summary>
    class procedure SetDOMDocumentCoClasses(GuidList: array of TGUID);
    /// <summary>
    /// Adds a DOM property to the DOMProperties list. Example call:
    ///  Xml.Win.msxmldom.MSXMLDOMDocumentFactory.AddDOMProperty('ProhibitDTD', False, True);
    /// </summary>
//    class procedure AddDOMProperty(const PropName: WideString; PropValue: OleVariant;
    class procedure AddDOMProperty(const PropName: DomString; PropValue: OleVariant;
      UpdateExisting: Boolean = True);
    /// <summary>
    /// List of DOMProperties to be set on the IXMLDOMDocument after it is created.
    /// See MSXML Second-Level DOM Properties in the MSDN documentation for details.
    ///  http://msdn.microsoft.com/en-us/library/windows/desktop/ms766391(v=vs.85).aspx
    /// </summary>
    class property DOMProperties: TDOMPropertyList read FDOMProperties write FDOMProperties;

    /// <summary>
    /// Instantiates an IXMLDOMDocument from the MSXML runtime.
    /// Override this method to have full control over IXMLDOMDocument CoClass creation.
    /// </summary>
    class function CreateDOMDocument: IXMLDOMDocument; virtual;
    /// <summary>
    /// Initializes the list of possible IXMLDOMDocument CoClass GUIDS to create.
    /// The default list includes multiple versions of MSXML (6.0 down to 2.6).
    /// </summary>
    class procedure SetDOMDocumentCoClasses(GuidList: array of TGUID);
    /// <summary>
    /// Adds a DOM property to the DOMProperties list. Example call:
    ///  Xml.Win.msxmldom.MSXMLDOMDocumentFactory.AddDOMProperty('ProhibitDTD', False, True);
    /// </summary>
//    class procedure AddDOMProperty(const PropName: WideString; PropValue: OleVariant;
    class procedure AddDOMProperty(const PropName: DomString; PropValue: OleVariant;
      UpdateExisting: Boolean = True);
    /// <summary>
    /// List of DOMProperties to be set on the IXMLDOMDocument after it is created.
    /// See MSXML Second-Level DOM Properties in the MSDN documentation for details.
    ///   http://msdn.microsoft.com/en-us/library/windows/desktop/ms766391(v=vs.85).aspx 
    /// </summary>
    class property DOMProperties: TDOMPropertyList read FDOMProperties write FDOMProperties;