Here Mudassar Ahmed Khan has explained how to solve the following error in ASP.Net application when hosted on IIS server.

HTTP Error 404.13 - Not Found The request filtering module is configured to deny a request that exceeds the request content length.

The above error occurs when one tries to upload a file larger than the maximum allowed limit.

Here Mudassar Ahmed Khan has explained how to solve the following error in ASP.Net Core.

HTTP Error 404.13 - Not Found The request filtering module is configured to deny a request that exceeds the request content length.

Here Mudassar Ahmed Khan has provided solution to the following error (exception) occurring in IIS Server with ASP.Net Websites and Web Applications.
The entry 'DefaultConnection' has already been added.
This error is generally associated with the AppSetting or ConnectionStrings sections of the Web.Config file in ASP.Net.

Here Mudassar Ahmed Khan has provided solution to solve the error (exception):- Could not load file or assembly ‘XYZ’ or one of its dependencies. An attempt was made to load a program with an incorrect format.
This error comes when the website or web application is hosted in IIS Server versions IIS 7 and IIS 8.

Here Mudassar Ahmed Khan has explained with an example, how to enable 32 bit Applications in Application Pool of IIS Server versions IIS 7 and IIS 8.
In 64 Bit windows server operating systems, by default 64 Bit .Net Framework installed and hence when you try to deploy a 32 Bit application (website) on IIS Server it results in an error.

Here Mudassar Ahmed Khan has explained how to solve the following error happening in Visual Studio and IIS server.
ASP.NET 4.0 has not been registered on the Web server. You need to manually configure your Web server for ASP.NET 4.0 in order for your site to run correctly, Press F1 for more details.

Here Mudassar Ahmed Khan has explained how to configure Mondor MSCaptcha in IIS Server.

Many developers are complaining that the Mondor MSCaptcha does not show Captcha image when the project is hosted in IIS server and mainly the issue is occurring in IIS7 and IIS8 versions as they have Classic as well as Integrated Pipeline Application Pools.

Thus in this short article I’ll cover the steps needed to make the Mondor Captcha show image on IIS Server.

Here Mudassar Ahmed Khan has explained how to install, configure and register ASP.Net 4.5 with IIS8 on Windows Server 2012.

Here Mudassar Ahmed Khan has explained how to get rid of the following error when working with IIS 8 and ASP.Net.

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.

Here Mudassar Ahmed Khan has explained how to register ASP.Net with IIS i.e. installing the ASP.Net in IIS so that ASP.Net pages can be served from IIS server. If ASP.Net is not registered with IIS then when accessing ASP.Net Website you will get the following error.

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.

Once the ASP.Net is registered the IIS will show ASP.Net 4.0 Application pools.

Here Mudassar Ahmed Khan has explained how to register ASP.Net with IIS i.e. installing the ASP.Net in IIS so that ASP.Net pages can be served from IIS server. If ASP.Net is not registered with IIS then when accessing ASP.Net Website you will get the following error.
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.

Once the ASP.Net is registered the IIS will show ASP.Net 4.0 Application pools.