private static extern int StgOpenStorageOnILockBytes( OleHelper.Interface17 plkbyt, OleHelper.Interface19 pStgPriority, uint grfMode, IntPtr snbEnclude, uint reserved, out OleHelper.Interface19 ppstgOpen);
private static extern int OleLoad( OleHelper.Interface19 pStg, [In] ref Guid riid, OleHelper.Interface16 pClientSite, [MarshalAs(UnmanagedType.IUnknown)] out object ppvObj);