In this article I will explain how to get rid of the following error when working with IIS 8 and ASP.Net.
HTTP Error 404.3 – Not Found: The page you are requesting cannot be served because of the extension configuration. If the page is a script, add a handler. If the file should be downloaded, add a MIME map.
![ASP.Net IIS8: The page you are requesting cannot be served because of the extension configuration. If the page is a script, add a handler. If the file should be downloaded, add a MIME map]()
You will get above error when accessing the ASP.Net Website (.ASPX page) installed in IIS 8 when ASP.Net is not installed in the IIS 8 Web Server.
Steps to install ASP.Net in IIS 8 Web Server
1. Open Server Manager and in its Dashboard click “Add roles and features”.
![ASP.Net IIS8: The page you are requesting cannot be served because of the extension configuration. If the page is a script, add a handler. If the file should be downloaded, add a MIME map]()
2. Click next on the “Before You Begin” information step.
![ASP.Net IIS8: The page you are requesting cannot be served because of the extension configuration. If the page is a script, add a handler. If the file should be downloaded, add a MIME map]()
3. On the “Installation Type” step select “Role-based on feature-based installation” and click next.
![ASP.Net IIS8: The page you are requesting cannot be served because of the extension configuration. If the page is a script, add a handler. If the file should be downloaded, add a MIME map]()
4. On the “Server Selection” step select your server and click next.
![ASP.Net IIS8: The page you are requesting cannot be served because of the extension configuration. If the page is a script, add a handler. If the file should be downloaded, add a MIME map]()
5. On the “Server Roles” step select “Application Development” and its child nodes which includes .Net, ASP.Net, CGI and other items.
![ASP.Net IIS8: The page you are requesting cannot be served because of the extension configuration. If the page is a script, add a handler. If the file should be downloaded, add a MIME map]()
6. On the “Features” step, I have selected “ASP.Net 4.5” as I had to host ASP.Net 4.5 website but you can also select any ASP.Net version or all as per your need.
![ASP.Net IIS8: The page you are requesting cannot be served because of the extension configuration. If the page is a script, add a handler. If the file should be downloaded, add a MIME map]()
7. On the Results step the selected roles and features will install and once completed you need to restart the computer in order to finalize the installation.
![ASP.Net IIS8: The page you are requesting cannot be served because of the extension configuration. If the page is a script, add a handler. If the file should be downloaded, add a MIME map]()
![ASP.Net IIS8: The page you are requesting cannot be served because of the extension configuration. If the page is a script, add a handler. If the file should be downloaded, add a MIME map]()
