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User keeps losing Session on Anonymous site?

Posted By:      Posted Date: September 22, 2010    Points: 0   Category :SharePoint

This code was working before, but something has changed and I don't know what.  I have an anonymous registration page.  On it, I have a CAPTCHA image, with a URL pointing to an ASPX page that is generating the image.  On the Registration page I am generating a 6 digit code to be displayed in the CAPTCHA image, then saving it to a Session variable.  On the CAPTCHA ASPX page, I am grabbing that Session variable and creating the image.  However, the Session is resetting when the CAPTCHA ASPX page is called.  If I debug it, it has a different ID and the variable is gone.

Why is this happening and how can I fix it?  I have Sessions enabled in SharePoint 2007.

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