IIS 7 503 error, application pool stop crash, defdoc.dll could not be loaded due to a configuration

Posted by optician on Server Fault See other posts from Server Fault or by optician
Published on 2010-02-17T14:20:11Z Indexed on 2010/03/29 18:03 UTC
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Hi All,

Currently trying to get iis 7 to work, but every time I request a page, the application pool goes into stopped status.

In the event log this is what comes back.

The Module DLL 'C:\Windows\System32\inetsrv\defdoc.dll' could not be loaded due
to a configuration problem. The current configuration only supports loading 
images built for a x86 processor architecture. The data field contains the 
error number. 

I've already re installed iis, any other ideas, I read that someone fixed this by downloading the dll again, but this seems like an odd solution.

Thanks.

EDIT

I have now replaced the file with one I downloaded off the internet, and now it says

The Module DLL 'C:\Windows\System32\inetsrv\protsup.dll' could not be loaded due to a configuration problem.

I hope I don't have to get 100's of these.

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