Hi!
There is no built in RSS feed functionality (apart from in the blog module), since it is alreay in the .Net framework System.ServiceModel.Syndication namespace. See the SyndicationFeed class. A short example:
public void ProcessRequest(HttpContext context)
{
SyndicationFeed feed = CreateRecentSolutionsFeed();
var output = new StringWriter();
var writer = new XmlTextWriter(output);
new Rss20FeedFormatter(feed).WriteTo(writer);
context.Response.ContentType = "application/rss+xml";
context.Response.Write(output.ToString());
}
Example from http://dovetailsoftware.com/clarify/kmiller/2009/02/06/creating-rss-feeds-using-asp-net/