public static AppSettings Load(string filename)
{
if (!File.Exists(filename))
throw new FileNotFoundException(filename);
XmlDocument xmlDocument = new XmlDocument();
xmlDocument.Load(filename);
XmlConverter xmlConverter = new XmlConverter();
ConversionContext context = new ConversionContext { Culture = Culture.Invariant, Device = xmlDocument };
AppSettings settings = xmlConverter.ConvertFrom(xmlDocument, context) as AppSettings;
return settings;
}