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Might be a n00b question. I have an IIS server with a site where I can host our website. But if I host the same website as an application in an existing site, it gives us a 500 error.

But my question is how do I go about debugging it? Event logs show no related entries, IIS logs just show the HTTP GET messages but no errors, disabling 'display friendly http errors' does nothing, failed request trace is configured but empty. How do I find the error?

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What application type e.g. ASP, ASP.NET, pure HTML test page? –  Anthony K Aug 12 '10 at 0:43
It's a ASP.NET site –  Xster Aug 12 '10 at 1:50

1 Answer 1

There is a similar question on SO Detailed 500 error message, ASP + IIS 7.5

Also check that the ASP.Net version (e.g. 1.1, 2.0 or 4) has been set correctly in the Web Site properties.

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I think it's definitely relevant. If I have an application inside a site, are the web.config independent? –  Xster Aug 12 '10 at 2:13

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