TMAPIFolder = class(TMAPICustomFolder)

  protected

    ...

  public

    property Access;

    property EntryID;

    property Folders;

    property Messages;

    property NoCache;

    property Active;

    property MAPIObjType;

    property MAPIObject;

    property Modified;

    property PropertyTags;

    property FolderType: TMAPIFldType read GetFolderType;

  end;

  TMAPICustomFolder = class(TMAPICustomHolder)

  protected

   ...

  public

    constructor Create(const oMAPIFolder: IMAPIFolder); reintroduce;

    destructor Destroy; override;

    property Folders;

    property Messages: TMAPITable Read GetMessages;

  end;