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Editorial Team
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Asked: 2026-05-15T05:41:16+00:00

I am a bit baffled here; using IE7, ASP.NET 2.0 and Cassini (the VS

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I am a bit baffled here; using IE7, ASP.NET 2.0 and Cassini (the VS built-in web server; although the same thing seems to be true for “real” applications deployed in IIS) I am looking for the session-id-cookie.

My test page shows a session id (by printing out Session.SessionId) and Response.Cookies.Keys contains ASP.NET_SessionId. So far so good.

But I cannot find the cookie in IEs cookie-store! Nor does “remove all cookies” reset the session (as it does in FF)… So where – I am tempted to write that four letter word – does IE store that bloody cookie? Or am I missing something? By the way there is no hidden field with a session id either, as far as I can see.

If I check in FF there is a cookie called ASP.NET_SessionId as I would expect. And as mentioned above deleting that cookie does start a new session; as I would expect.

Can anybody imagine what is happening here?

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1 Answer

  1. Editorial Team

    The ASP.NET session cookie is non-persistent, so it doesn’t get saved to your hard-drive. It gets transmitted back and forth while you’re using the application, but it gets discarded when you close the broswer.

    From MSDN:

    Note

    When you run this code, you might see
    a cookie named ASP.NET_SessionId. That
    is a cookie that ASP.NET uses to store
    a unique identifier for your session.
    The session cookie is not persisted on
    your hard disk. For more about session
    cookies, see the “Cookies and Session
    State” later in this topic.

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