//this is what is used currently
	public class Header
	{
		public EndianFlag Endianness;
		public MessageType MessageType;
		public HeaderFlag Flags;
		public byte MajorVersion;
		public uint Length;
		public uint Serial;
		public HeaderField[] Fields;
	}

//this might be better
	public class Header
	{
		public EndianFlag Endianness;
		public MessageType MessageType;
		public HeaderFlag Flags;
		public byte MajorVersion;
		public uint Length;
		public uint Serial;
		public Dictionary<FieldCode,object> Fields;
	}