Question : generic handler ashx file

I have a site in asp.net 2.0 with C#.
I have a generic handler file .ashx.
I redirect to this file from another page and in this file I have the
"public void ProcessRequest (HttpContext context)"
with the context I can read the cookies by :   context.Response.Cookies.Add(Vis_cookie);
I had in other pages Session["sessionid"]. I want to read it in the file. How do I do it?
Anat

Answer : generic handler ashx file

Hi,
O.K. I solved the problem:
I have to write:
public class rdhndlr : IHttpHandler , IRequiresSessionState  {  
and only after that the Context.Session["sessionid"]
 will have value.