How Extensionless URLs Are Handled By ASP.NET v4

ASP.NET v4.0 has a new feature, when hosted on IIS 7, that enables the execution of extensionless URLs.  This feature has a dependency on a QFE from IIS that enables extensionless handler mappings.  See KB 980368 for more information and a link to download the fix. ASP.NET v4.0 adds extensionless handler mappings to IIS’s configuration file (applicationHost.config).  There…

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