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500.19 Internal Server Error, There is a duplicate ‘system.web.extensions /scripting /scriptResourceHandler’

by Jon 29. October 2010 22:22

Http Error 500.19 There is a duplicate ‘system.web.extensions/scripting/scriptResourceHandler’

After shipping your asp.net 2.0, 3.0 or 3.5 application to a new server you get the following error:

There is a duplicate ‘system.web.extensions/scripting/scriptResourceHandler’

Don’t worry you haven’t done anything wrong, your are just trying to ship to a new server that has been configured to use .NET 4.0 as the default, and lucky for you it is a quick and simple configuration change to fix it:

Change Application Pool to .Net Framework v2.0

  • Open Internet Information Services (IIS) Manager
  • Goto the Application Pools screen
  • Open the Application Pool offending web application(s) are using
  • Change the Application Pool to use dotnet 2.0 instead of .net 4.0
  • Hard Refresh the erroring page with a <Ctrl> F5

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asp.net | Deploy | IIS | TechSupport

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Where is WebDeploy aka MsDeploy installed to

by Jon 30. June 2010 11:54

Microsoft has a funky tool that atomates the deployment of web appplications.  It has a GUI interface and importantly a command line interface.  It isn't obvious where it is installed to, and microsoft have a naming issue (it is called webdeploy but the exe is called msdeploy)!  The folder msdeploy/webdeploy is installed to is here, enjoy

C:\Program Files\IIS\Microsoft Web Deploy

MSDN documentation is here

A Basics Blog here, but it is a little confusing

A sample Manifest.xml

Turns out its actually quite simple to do, the docs are over complicated.  All you need to go is create a blank zip file and Create a new xmlfile called Manifest.xml inside it and a directory for content.  When I finally have it working I will put together a easy step by step blog post.  Got a few things in the pipeline at the moment.

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