using System;

using System.Xml;

using System.IO;

using System.Text;

public class Program

{

    public static void Main()

    {

        Console.WriteLine("Starting");

        MemoryStream stream = new MemoryStream();

        var utf = new UTF8Encoding(false);

        XmlTextWriter writer = new XmlTextWriter(stream, utf);

        writer.Formatting = Formatting.Indented;

        writer.WriteStartDocument();

        writer.WriteProcessingInstruction("process", "5");

        writer.WriteComment("commenting");

        writer.WriteStartElement("dog");

        writer.WriteAttributeString("attribute", "www.windward.net", "5");

        writer.WriteStartElement("cat");

        writer.WriteEndElement();

        writer.WriteEndElement();

        writer.WriteEndDocument();

        writer.Flush();

        string result = utf.GetString(stream.ToArray(), 0, (int) stream.Length);

        Console.WriteLine("XML: " + result);

    }

}