HTTP Error 500.21-Internal Server Error pagehandlerfactory-Integrated

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• The handler "pagehandlerfactory-integrated" contains a processing method for the "managedpipelinehandler" error module in its module list.

Handle HTTP Error 500.21-Internal Server Error Program"Pagehandlerfactory-integrated" has an error module "managedpipelinehandler" in its module list.

 

 

Cause: after the Framework v4.0 is installed, IIS is enabled again. As a result, the framework is not fully installed.

 

Cause:
Vs2010 uses the 4.0 framework by default. The 4.0 framework is an independent CLR, which is different from the 2.0 Framework. To run a 4.0 website, you need to register the 4.0 framework with aspnet_regiis, use the 4.0 class pool to run the 4.0 Web project.

How can I use aspnet_regiis to register the 4.0 framework:

 

Solution:

CMD command window

Cd c :/

Cd c: \ WINDOWS \ Microsoft. NET \ framework \ v4.0.30319

Enter aspnet_regiis.exe-I

 

Registered successfully

In IIS, modify the. netframework Framework of the application pool to 4.0.