1. What are the classes required to send e-mail from an ASP.NET application?
2. What are the classes that are derived from System.Web.WebServices?
3. What are the classes that are not derived from System.Web.WebServices?
4. What are VSDISCO files?
5. How to upload files to webpages?
6. How to create a ASPX page that refreshes itself after some interval of time?