Ran across an interesting problem. While setting up a new Windows 2008 R2 erver and website on IIS; I noticed that the site was generating 500 errors when serving static files (images, css, html, etc.)
I turned on Failed Request Tracing and noticed that I was getting this logged
This configuration section cannot be used at this path. This happens when the section is locked at a parent level. Locking is either by default (overrideModeDefault="Deny"), or set explicitly by a location tag with overrideMode="Deny" or the legacy allowOverride="false".
Based simply on previous experience I went to the IIS Feature Delegation and reviewed the delegation for the various IIS modules.
I found that by setting Handler Mappings to Read/Write the error was resolved.
I’m still not sure why this causes a problem since I’m not defining any custom handlers at the site level.
Perhaps this setting must be read/write even when custom handlers are set at the server level?
An information technology professional with twenty four years experience in systems administration, computer programming, requirements gathering, customer service, and technical support.
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