Http Error 404 In Iis 6.0
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Start here for a quick overview of the site Help Center Detailed answers to any questions you might have Meta Discuss the workings and policies of this site About Us Learn more about Stack Overflow the company Business Learn more about hiring developers or posting ads with us Server Fault Questions Tags Users Badges Unanswered Ask Question _ Server Fault is a question and answer site for system and network administrators. Join them; it only takes a minute: Sign up Here's how it works: Anybody can ask a question Anybody can answer The best answers are voted up and rise to the top IIS6: How to troubleshoot a 404 error in an ASP.NET application? up vote 5 down vote favorite I have an ASP.NET application on https://support.microsoft.com/en-us/kb/315122 a Windows Server 2003/IIS6 that refuses to run for some reason (it's the Xerox Centre, if that info helps). It has been working flawlessly before though on this server. Now, all I get if I try to open the app homepage (http://some.intranet.server/XeroxCentreWareWeb/) is a "404 - File or directory not found" error. The app is configured to run in it's own app pool, which runs as Network Service. The Network Service account has read access to the configured directory. If I stop http://serverfault.com/questions/77171/iis6-how-to-troubleshoot-a-404-error-in-an-asp-net-application the app pool, I get the expected "Service Unavailable" message, meaning the app and its pool are wired correctly I tried to track down any file permission issues with procmon - nothing to be seen. There isn't even an access to the web app directory happening when the page loads. Interestingly, according to procmon, the web server accesses the 401-2 custom error file (Logon failed due to server configuration) first, but then decides to send the 404 down to the client. EDIT: The app runs with Windows-integrated authentication. Regular users have access to the app directory as well (I would have noticed file system "ACCESS DENIED" messages in procmon, if there had been any.) This makes me think that there is some kind of weird permission problem that occurs even before the application files are being accessed. I just have no idea where to look. I've tried to run the app pool as Local System for a test, but to no avail. What else could I check in this case? windows-server-2003 permissions iis-6 asp.net web-applications share|improve this question edited Oct 22 '09 at 14:10 asked Oct 22 '09 at 13:00 Tomalak 1,16341429 1 +1 for using ProcMon, btw. –user3914 Oct 22 '09 at 13:06 add a comment| 10 Answers 10 active oldest votes up vote 2 down vote First off, I love the troubleshooting steps that you took. One more 'break' test is to stop the site itself, not just the app pool, to
product, category, keywords, or phrases. Advanced Search Search terms Screen Reader users press enter to Limit by product. Limit by product This button does http://nuance.custhelp.com/app/answers/detail/a_id/5954/~/http-error-404-%E2%80%93-file-or-directory-not-found-appears-when-using-http-roaming not work with screen readers. Please use the previous link instead. Select a product Screen Reader users press enter to Limit by category. Limit by category This button does not work with screen readers. Please use the previous link instead. Select a category Sort by Default Summary New or Updated Description Date Updated Direction Ascending Descending http error Search Tips Find the answer to your question Search filters applied "HTTP Error 404 – File or Directory not found" appears when using HTTP Roaming with IIS 6.0 or later Answer ID 5954 | Published 04/09/2010 04:02 PM | Updated 04/28/2010 12:35 PM "HTTP Error 404 – File or Directory not found" appears when using HTTP Roaming http error 404 with IIS 6.0 or later Problem: When attempting to open a file from a web server running IIS 6.0 or later, and the file has an extension that is not a defined "MIME Type", the following error message will be displayed: HTTP Error 404 – File or Directory not found Cause: A Dragon NaturallySpeaking user profile contains several file extensions that are not a defined "MIME Type" by IIS 6.0 or later. Earlier versions of IIS included a wildcard character for "MIME" mapping which permitted IIS to serve any file regardless of its extension. IIS 6.0 and later versions do not include this wildcard "MIME" mapping, and will not serve any extension that is not defined. Note: For further information concerning the changes made to IIS 6.0 and later versions, please refer to the following Windows Knowledgebase article: http://support.microsoft.com/kb/326965 Solution: Define a wildcard "MIME Type" within the roaming user profile directory of the IIS server. In order to define the wildcard "MIME Type", please follow the steps listed
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