IIS 8.5 Detailed HTTP Error 404.3 Not Found Feature May Not Installed or MIME Map is not Enabled

Introduction:

Here I will explain how to solve iis 8.5 detailed error “HTTP error 404.3 – Not Found (the feature you are trying to use may not installed or the appropriate MIME map is not enabled for the website or application)”. Actually this problem occurred when .NET framework 3.5, 4.5 not installed but using those frameworks in applications. To fix this problem we need to enable asp.net 3.5 or 4.5 version frameworks using Turn windows features on or off in control panel.

Description:

In previous posts I explained class asp responsive buffer limit exceeded error, convert string to lower case, upper case and title case in asp.net, jQuery send receive json object from webservice methods, Asp.net mvc complete project with database, download multiple files as zip folder in asp.net and many articles relating to solve errors in asp.net, SQL Server, IIS, etc. Now I will explain how to solve the problem of “IIS 8.5 HTTP Error 404.3 – Not Found (the feature you are trying to use may not installed or the appropriate MIME map is not enabled for the website or application).

In my system when I installed iis 8.5 and started using previous applications which is pointing to other versions 3.5 it’s not working and throwing error like as shown below

To fix this problem please follow below steps

Start à Control Panel à Click on Programs à Programs and Features à Click on Turn windows features on or off

When we click on Turn windows features on or off it will open window like as shown below

Now check whether asp.net installed or not in your system for that follow below steps

Internet Information Services à World Wide Web services à Application Development Features in that check whether all required features selected or not like as shown below

Once you select all options click on button to install all required components in your application.

I hope it helps you to fix your problem. Happy Coding……

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