Dreamweave Cookie snippet

I used the Dreamweaver cookie code that was included in the code snippets.
It appears to be working fine so far.
When I look at the cookies in my Temporary Internet folder, I see them all
listed as Cookie:winxp (AT) URLname (DOT) The Dreamweaver code simply names the cookie
file by the folder name it resides. What is the difference and why?

Thanks