Failed Request Tracing in IIS7 helps to answer- why
Failed Request Tracing (also called FREB) is an IIS7 request-based tracing tool that helps figure out what exactly is happening to web server requests and why. Poor performance on some requests, authentication-related failures on other requests, or even server 500 errors from ASP or ASP.net were a nightmare to troubleshoot in previous IIS versions since [...]
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May 29, 2009 