Yes. You can access the "Session" dictionary within a code-
behind file just like you would if you were accessing it 
from within an line .aspx file.

For example: Session("Name") = "Scott" 

" YES "

simply take 2 websites

for example in 1st website..... u have a textbox1

on page load()
--------------
Session["name"]=textBox1.Text;

in 2nd website..........

on page load()
-------------

Response.Write(Session["name"]);



definatly u will get the ans ,, whatever u entering in the 
textbox1 in 1st website that will displat in 2nd website