Hi
Look at
www.sybex.com and search ASP.NET with C#. Download the code and look at the code for chapter 6. Chapter 6 handles the complete response object. The responses you are looking for is Response.charset, response.contentencoding, response.contenttype, response.cache, response.cookies and the methods for the response object are addfiledependencies, addfiledependency, appendheader, appendtolog and binarywrite.
To write the properties use something like
Response.Write("Charset=" & Response.Charset & "<br>")
Response.Write("ContentType=" & Response.ContentType & "<br>")
Response.Write("ContentEncoding=" & Response.ContentEncoding & "<br>")
Hope this helps