using (var stream =
                    Assembly.GetAssembly(typeof(StubPolicy)).GetManifestResourceStream(
                        "Documents.TestHelpers.Files.test.msg"))
                {
                    const int bufferLength = 256;
                    var buffer = new Byte[bufferLength];
                    if (stream != null)
                    {
                        int bytesRead = stream.Read(buffer, 0, bufferLength);

                        using (var fs = new FileStream(filename, FileMode.CreateNew, FileAccess.Write))
                        {
                            // Write out the input stream
                            while (bytesRead > 0)
                            {
                                fs.Write(buffer, 0, bytesRead);
                                bytesRead = stream.Read(buffer, 0, bufferLength);
                            }
                            fs.Close();
                        }
                        stream.Close();
                    }
                }