Error message when users visit a Web site that is hosted on a server that is running Internet Information Services 6.0: "HTTP Error 404.3 - Not Found"

lprete — Tue, 04 Dec 2007 13:37:00 GMT

SYMPTOMS

Consider the following scenario. You have a Web site that is hosted on a server that is running Internet Information Services (IIS) 6.0. When users visit this Web site, the users receive the following error message:

HTTP Error 404 - File or directory not found.

In the IIS log file you see an entry like this:

#Software: Microsoft Internet Information Services 6.0
#Version: 1.0
#Date: 2007-12-04 15:59:52
#Fields: date time s-sitename s-ip cs-method cs-uri-stem cs-uri-query s-port cs-username c-ip cs(User-Agent) sc-status sc-substatus sc-win32-status
2007-12-04 16:00:29 W3SVC1 127.0.0.1 GET /test.php - 80 - 127.0.0.1 Mozilla/4.0+(compatible;+MSIE+7.0;+Windows+NT+5.2;+.NET+CLR+1.1.4322;+.NET+CLR+2.0.50727;+.NET+CLR+3.0.04506.30) 404 3 50

CAUSE

This problem occurs if the following conditions are true:

The file exists in the requested location.
The extension does not have an Application Mapping configured on the site.
The appropriate MIME type is not configured for the Web site or for the application.

RESOLUTION

To resolve this problem, follow these steps:

Configure a handler mapping for the requested file name extension. To do this, follow these steps:

Click Start, Run. In the Open field type inetmgr then OK.
In IIS Manager, expand the server, expand Web sites, and then right click the Web site that you want to modify and select Properties.
On the Home Directory tab click Configuration and configure an appropriate Application Extension for the type of the file that results in the 404.3 error.

Configure an appropriate MIME type for the Web site. To do this, follow these steps:

Click Start, Run. In the Open field type inetmgr then OK.
In IIS Manager, expand the server, expand Web sites, and then right click the Web site that you want to modify and select Properties.
On the HTTP Headers click MIME Types
In the MIME Type dialog click New.
Add the extension of the required file and the MIME type in the MIME Type dialog, and then click OK.

Sunday Morning Musings on IIS : 404.3

Error message when users visit a Web site that is hosted on a server that is running Internet Information Services 6.0: "HTTP Error 404.3 - Not Found"

SYMPTOMS

CAUSE

RESOLUTION