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Editorial Team
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Asked: 2026-06-06T15:48:42+00:00

I created a blank MVC 3 application on VS2010 SP1, and set the app

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I created a blank MVC 3 application on VS2010 SP1, and set the app to use IIS Express. When I debug, I get error 500.0 (0x80070585)

I am able to succesfuly run the app using the VS dev server

I have set the app directory to Full Permissions for Everyone, just to eliminate all possibility of security issues. I have further verified that IIS express is able to hit the web.config by confirming it using SysInternals ProcMon. ProcMon does not show the IISExpress process attempting to read from any other files in my application directory.

I have followed the suggestions in the following question, but it does not give me any better information. HTTP 500 Internal Error – IIS websites

No logs are generated in the IISExpress directory in either the Logs or TraceLogs directory, but a log is created in Temp, however it is not very useful.

Successfully registered URL "http://localhost:62017/" for site "MvcApplication1" application "/"
Registration completed for site "MvcApplication1"
Request ended: http://localhost:62017/ with HTTP status 500.0
Request ended: http://localhost:62017/ with HTTP status 500.0
Request ended: http://localhost:62017/ with HTTP status 500.0

There are no messages I am able to find in the Event Viewer

**Updates : **
Disabled firewall, no change
Ran IISExpress via command line, no change

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1 Answer

  1. Editorial Team

    reinstalling iis express appears to have resolved this problem

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