Why do I get an HTTP error 404.3?

You may get an HTTP implementation error if the ASP feature is not installed on the IIS 7 / 7.5 / 8 / 8.5 server. HTTP Error 404.3 - Not Found. The page you are frequently requestingYou may not be able to service it because of this expansion configuration. If the page is a package, add a handler.

What does 404.3 mean in total re?

However, a complete reinstall worked. 404.3 is really a limitation of the MIME type, it fits the server without serving files with the .aspx extension. It doesn't matter, of course not. But there is something similar to the definition in handler mappings: if there are no entries at all, add them. Thanks for answering. No, these records do not exist.

Why is my ASP.NET page not downloading?

If the page is a script, add an appropriate handler. If you want the file to be downloadable, add a MIME card. Most likely results: • Manager card may not be available. By default, the static data handler processes all content. • The feature that customers want to use may still not be installed.

Tips to fix asp.net error 404.3

Table of Contents

Approved: Fortect

1. Download Fortect and install it on your computer

2. Launch the program and click "Scan"

3. Click "Repair" to fix any issues that are found

Speed up your computer's performance now with this simple download.

Over the past few days, a number of readers have reported asp.net error 404.3. The same behavior (for example, HTTP error 404.3 – not found) occurs when the request is sent as ASP. Here is the output from the above commands: C:>% windir% system32inetsrvappcmd Retail Store Apppools

A common error for Windows websites is HTTP Error 404.3 – Not Found.

This error is suspected to be due to a missing script engine or MIME usage in the IIS web server.

At Bobcares, as part of our company’s server administration services, we receive frequent requests to resolve HTTP errors.

Approved: Fortect

Fortect is the world's most popular and effective PC repair tool. It is trusted by millions of people to keep their systems running fast, smooth, and error-free. With its simple user interface and powerful scanning engine, Fortect quickly finds and fixes a broad range of Windows problems - from system instability and security issues to memory management and performance bottlenecks.

1. Download Fortect and install it on your computer

2. Launch the program and click "Scan"

3. Click "Repair" to fix any issues that are found

Today, let’s see how our tech support fixes HTTP error 4044.3.

What Does HTTP Error 404.3 Indicate?

If the server has always failed to serve the World Wide Web page requested by the browser, it will display errors as exception codes for HTTP status. One of these HTTP errors – error 404.3 – not found.

This is a 404 style that indicates that the requested page cannot be found for some reason. The house also displays the 404.3 status subcode. This indicates a MIME limitation. Content errors make this clear. Typical error information is displayed as follows:

This error occurs It is in the theme of the Windows hosted website and each of our IIS web servers. Basically, this error can easily occur. If the requested page consists of scripts, then there is no corresponding handler. Or, if images or videos are not supposed to load, the corresponding MIME type should not be available. This error can also occur if the ASP.NET feature is not only enabled.

Fixed HTTP Error 404.3

As the issue described in the code, the reason for working with this error is the lack of scripting handlers with ASP.NET and features, also due to inappropriate MIME mapping. Let’s see how the IIS experts fix this error that our clients are experiencing.

Install ASP.NET Feature

The ASP.NET component needs and wants to be installed on the server because the .NET files are loaded. If the feature is simply not enabled, we will get HTTP error 4044.3. We are discussing how our specialists will activate this feature.

Click Start >> Administrative Tools >> Server Manager.
In Server Manager, click Add Roles with Roles.
Then click Roles… Expand all .NET Framework.
Now select the required .NET Framework for ASP. After you select ASP.NET ISAPI Option Filters, ISAPI Extensions, .NET Option Extensibility are automatically selected.
We execute the whole command according to the Windows architecture.

For 32-bit Windows (x86):

For (x64) 64-bit Windows

Finally, we verify that the accumulation of domain applications is using the installed platform.

Added New Script Engine

Most websites work with scripting languages like php, .NET and for this reason. Hence, the entire appropriate script manager must be installed on the web server in order to display the required page in the browser. If this approach is missing, a huge 404.3 error usually appears on show sites.

First, we open the Internet Information Services (IIS) Manager.
Now we select the mapping manager in Home >> Server components.
In real time, in the action area, we click on the Module lend Mapping.
Now a dialog box opens, in this case we need to Add:

Request * .php
Module: FastCgiModule
Executable file: after “c: [PHP installation path] php-cgi.exe”

PHP

Name: via FastCGI

Finally, we click OK and confirm the dialog that appears.

To ensure this works, our support engineers will check the PHP results page that contains the FastCGI data module.

Select MIME Type

The Multipurpose Internet Mail Extensions Type MIME alias identifies the input content provided to the browser.

Choosing the MIME type on localhost is also important. By default, the IIS server has MIME types set for the shared file content. .Mixes .html. For .text files, .jpeg for graphics, etc. But for completely new or newest file content, we need to add it to the list of MIME types. To add it to an IIS server, someone’s support team does the following.

First, open the We Information Services (IIS) Internet Manager.
Now, in the Connections area, we select the site / application / directory that the newbie needs with a MIME type.
Then

double-click the MIME types in the welcome window.

Standard

MIME types.
Then select Add Selection and add the desired MIME types.
Finally, we all restart IIS.

[Still having problems troubleshooting HTTP errors? – We’ll fix it.]

Conclusion

In short, HTTP error 404.3 – not found occurs on a website hosted in Windows IIS and on a web server. Typically, this type of error occurs due to a missing script engine or possibly the wrong MIME type. Today we saw how personal tech support fixes this error.