How can I add Image inside .doc file I created using Isolated Storage in WP7?

I am creating a .doc file in WP7 using Isolated Storage using the Following Code:

using (StreamWriter SW = new StreamWriter(new IsolatedStorageFileStream("Sample.doc", FileMode.Create, FileAccess.Write, ISF)))
                    {
                        string text = "Hi this is the text which will be written to the file and we can retrieve that later";
                        SW.WriteLine(text);
                        SW.Close();
                        MessageBox.Show("Your Text Has Been Saved Successfully To The File");
                    }

How can I add Image inside .doc file I created using StreamWrtiter or any other means possible using Isolated Storage in WP7.
Thanks in Advance.

Tags: C# (C# 4.0), Silverlight, Mango