I recently helped a customer with an issue where ASP pages would not execute and returned the following error page: HTTP Error 500.0 - Internal Server Error If you check the Detailed Error page you will see the following additional information (NOTE:
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Read the complete post at http://blogs.iis.net/webtopics/archive/2010/02/26/asp-500-error-and-error-code-0x800700aa-when-browsing-a-simple-asp-page.aspx