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I am trying to migrate an IIS server and a web application to my machine.

I've imported the settings from another machine, but some .dll failed to load.

I've just installed them, but now I stuck.

The Module DLL C:\Windows\System32\inetsrv\validcfg.dll failed to load. The data is the error.

What I really want to do is to install this dll I just do not know, what should I install from windows services.

Under IIS there is no ConfigurationValidationModule or any like this.

Of course I've tried to goole it, and found this SO topic.

The only occure is in IIS_schema.xml and I rewrote it to false.

<sectionSchema name="system.webServer/validation">
  <attribute name="validateIntegratedModeConfiguration" type="bool" defaultValue="false" />
</sectionSchema>

I just changed the Managed Pipline to Classic in my application pool to through IIS management console.

Restarted the IIS, but I am still getting 503, and in the Event Viewer the error appears again.

Can anybody help me with this?

EDIT

All the Health and Diagnostic modules are installed, but there is no file like this.

vaso123
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2 Answers2

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I've just unistall IIS and WAS (Windows Process Activation Service), reinstall IIS and WAS and after this everything was fine.

validcfg.dll is a core module of Health And Diagnostic.

vaso123
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i had the same problem, but found out it happened because i copied an existing configuration file from another server i run to the new server.. the other server had asp.net installed and running, and my new server had not..

so there propably was a config fault and iis didnt like that..

after installing the missing component on the server everything went just fine..

Marco Tibben
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