Microsoft KB Archive/931198

= Error message when you try to visit a Web page that is hosted on a computer that is running Internet Information Services 7.0: &quot;HTTP Error 503. The service is unavailable&quot; =

Article ID: 931198

Article Last Modified on 2/22/2007

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APPLIES TO


 * Microsoft Internet Information Services 7.0

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SYMPTOMS
When you try to visit a Web site that is hosted on a computer that is running Microsoft Internet Information Services 7.0, you receive the following error message:

HTTP Error 503. The service is unavailable.

Additionally, an error message that resembles the following is logged in the System event log:

Log Name: System

Source: Microsoft-Windows-WAS

Event ID: 5009

Task Category: None

Level: Warning

Keywords: Classic

User: N/A

Computer:

Description:

A process serving application pool 'DefaultAppPool' terminated unexpectedly. The process id was '432'. The process exit code was '0xfffffffe'.



CAUSE
This issue occurs when an empty folder from an earlier version of the Microsoft .NET Framework 2.0 is located in the \Microsoft.NET\Framework folder.

For example, you have an empty folder that is named  or earlier that is located in the  \Microsoft.NET\Framework folder. The computer is running IIS 7.0 and the original release version of the .NET Framework 2.0 (version 2.0.50727).



RESOLUTION
To resolve this issue, you must remove or rename the empty folder. If the folder is not empty, you must verify that a beta build of the .NET Framework 2.0 is not installed on the computer. To do this, follow these steps:
 * 1) Click Startvistastartbutton.jpg], and then click Control Panel.
 * 2) In Control Panel, click Programs, and then click Programs and Features.
 * 3) Select the .NET Framework 2.0 Beta version, and then click Uninstall.

Keywords: kbtshoot kbprb kbexpertiseinter KB931198

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