Configure IIS 7.5 to manage ASP.NET 4.0 web pages

Problem

Solution

After installing .NET Framework 4.0 on a machine there is a few configuration changes you need to do to IIS in order to get a ASP.NET 4.0 page running.
First set the Application pool to run in ASP.NET v4.0 “mode”.

Then you need to allow ASP.NET v4.0.x to run. This is done in the ISAPI and CGI Restrictions found on the server level. Follow The picture below to make it done..



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Select the same version you have installed on your server, (32 bit or 64 bit). And change to Allowed. 

By Mohd Zulkamal
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