Cookies
Cookies are data sent from the client to the server on every request that the client makes. Cookies are stored by the browser, either on disk or in memory, and returned to the server that originally set the cookie.
The Internet Script API makes available the name and value of each cookie that's sent with the request, through the Request object's GetCookieNames and GetCookieValue methods. The API also enables you to set new cookies (or alter existing cookies) through the Response object's CreateCookie method and the Cookie object's properties.