HTTP Error 500.19 - Internal Server Error

  • Published on Nov 5, 2026
  • 1 minute(s) read
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HTTP Error 500.19 - Internal Server Error, Error Code: 0x80070021

The requested page cannot be accessed because the related configuration data for the page is invalid.

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Follow the steps shown below to fix this problem:

  • Open the Server Manager interface

  • Select Features from the left menu. Click Add Features

  • In the Select Features interface, expand .NET Framework (latest) Features

  • Select the check box next to .NET Framework (latest). Click Next

  • Click Install on the Confirmation page. You will see the installation progress

  • Click Close to close the wizard once the framework has been installed
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If this error occurs in BizTalk360 v10, then make sure URL Rewrite is installed on the server.

HTTP Error 500.19 - Internal Server Error with Error Code 0x800700c1

When you encounter an error as shown below:

Cause of the error:

With the installation of WSUS (Windows Server Update Services) on the same server, causes a conflicting issue with two new IIS Modules installed at the top level (from WSUS being installed). These modules then propagate down through IIS websites, thus affecting other sites’ ability to operate, resulting in HTTP Error 500.19 - Error Code 0x800700c1. The two modules in question are locked by default and propagate down within IIS. The Modules added globally are DynamicCompressionModule and StaticCompressionModule.

Solution:

We recommend removing DynamicCompressionModule from IIS. Follow the steps shown below to remove the module from IIS -

  1. Open IIS Manager

  2. Click on your Server Node (top level). In the right pane, look for Modules and double-click Modules

  3. Within Modules, look for DynamicCompressionModule. Select the module, and in the upper-right pane (Actions), choose Unlock

  4. Fall back to the left Pane (Connections), expand the Server Node, and then expand Sites. Go ahead and click on BizTalk360

  5. Within BizTalk360 Home, in the right pane, locate Modules and double-click Modules. This will display all of the propagated Modules from the top level (Server Node)

  6. You will notice DynamicCompressionModule in the list of Modules. Right-click and select Remove DynamicCompressionModule

  7. Reset IIS by using iisreset in an Admin Command Prompt