Description of Persistent and Per-Session Cookies in Internet Explorer


Internet Explorer 5 provides separate security controls for persistent cookies and for per-session cookies. A cookie is a method for a Web server to maintain state information about users as users navigate different pages on the site, and as users return to the site at a later time.

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Persistent cookies are stored for a length of time that is set by the Web server when it passes the cookie to Internet Explorer. These cookies are used to store state information between visits to a site.

Per-session cookies are used to store state information only within a session. These cookies are cached only while a user is visiting the Web server issuing the per-session cookie and are deleted from the cache when the user closes the session.

Per-session cookies are frequently used by Active Server Pages (ASP) running on Microsoft Internet Information Server 3.0 or later. These cookies store session information as the user navigates to multiple ASP pages in a site.

For additional information about how to customize your cookie settings in Internet Explorer 5, click the article number below to view the article in the Microsoft Knowledge Base:

196955 How to Set and Customize Cookies Settings in Internet Explorer 5


Cookies are defined in RFC 2965, "HTTP State Management Mechanism". RFCs can be found online at the following Web site:


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