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I just installed .net 4 on my server 2008 and I keep getting Service Unavailable

HTTP Error 503. The service is unavailable.

messages from any application I try to run as .net 4. The application pool keeps stopping. Event view shows: "The worker process failed to pre-load .Net Runtime version v4.0.30319."

Joel Coehoorn
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Eonasdan
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  • Have you tried googling http://fooberry.com/2009/10/30/iis-7-net-4-0-beta-2-and-503-service-unavailableafter-beta-1/ and http://serverfault.com/questions/78466/iis-gives-503-after-updating-net-4-0-to-beta-2 – Darin Dimitrov Jun 21 '10 at 21:17
  • yes. I didn't install the beta and I've registered .net 4 twice already. – Eonasdan Jun 22 '10 at 13:30

2 Answers2

1

I was getting this same thing on a windows core 2008 R2 box.

Running 'oclist' showed that there were some missing windows features. To install them, i needed to run the following commands:

ocsetup NetFx2-ServerCore-WOW64
ocsetup NetFx3-ServerCore-WOW64
Matt
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Problem has been solved. I uninstalled .net 4 and reinstalled using the "web platform installer". restarted and now it works.

Eonasdan
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