// Now transform XML into HTML
XslCompiledTransform transform = new XslCompiledTransform();
XsltSettings settings = new XsltSettings();
settings.EnableDocumentFunction = true;
settings.EnableScript = true;
XmlUrlResolver resolver = new XmlUrlResolver();
resolver.Credentials = System.Net.CredentialCache.DefaultCredentials;
transform.Load(stylesheet, settings, resolver);
StringBuilder sb = new StringBuilder();
XmlWriter xmlWriter = XmlWriter.Create(sb, transform.OutputSettings);
transform.Transform(xmlFile, xmlWriter);