public void LoadThumbnails(string[] files)
        {
            this.files = files;

            iem.ImageList.Clear();
            foreach (string file in this.files)
            {
                byte[] fileContent = File.ReadAllBytes(file);
                var ms = new MemoryStream(fileContent);
                IEImage image = new IEImage();
                image.LoadImage(ms, IEFileFormats.JPEG);
                iem.ImageList.AppendImage(image);
                image.Dispose();                                     // <<<<< add this
                ms.Dispose();
            }