Article ID: 905773 - Last Review: October 9, 2011 - Revision: 2.0

You receive an "HTTP Error 500" error message when you try to log on to Outlook Web Access from a Windows Server 2003-based computer

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SYMPTOMS

Consider the following scenario. You use a Microsoft Windows Server 2003-based computer to log on to a Microsoft Outlook Web Access (OWA) server. When you first contact the OWA server, OWA provides a Web-based user interface for authentication purposes. When you try to log on to this Web page, you enter an invalid user name or password. In response, you receive an "HTTP Error 500" error message. In this scenario, the following error message is standard:

The Web page requires the user to enter a valid password and user name.

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CAUSE

This issue occurs because the Microsoft Internet Information Services (IIS) server does not handle the error code correctly.

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RESOLUTION

Service pack information

To resolve this problem, obtain and install Windows Server 2003 Service Pack 1 (SP1). For more information about how to obtain Windows Server 2003 Service Pack 1, click the following article number to view the article in the Microsoft Knowledge Base:

889100 (http://support.microsoft.com/kb/889100/ ) How to obtain the latest service pack for Windows Server 2003

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Hotfix information

A supported hotfix is available from Microsoft. However, this hotfix is intended to correct only the problem that is described in this article. Apply this hotfix only to systems that are experiencing this specific problem. This hotfix might receive additional testing. Therefore, if you are not severely affected by this problem, we recommend that you wait for the next software update that contains this hotfix.

If the hotfix is available for download, there is a "Hotfix download available" section at the top of this Knowledge Base article. If this section does not appear, contact Microsoft Customer Service and Support to obtain the hotfix.

Note If additional issues occur or if any troubleshooting is required, you might have to create a separate service request. The usual support costs will apply to additional support questions and issues that do not qualify for this specific hotfix. For a complete list of Microsoft Customer Service and Support telephone numbers or to create a separate service request, visit the following Microsoft Web site:

http://support.microsoft.com/contactus/?ws=support (http://support.microsoft.com/contactus/?ws=support)

Note The "Hotfix download available" form displays the languages for which the hotfix is available. If you do not see your language, it is because a hotfix is not available for that language.

Prerequisites

No prerequisites are required.

Restart requirements

You must restart the computer after you apply this hotfix.

Hotfix replacement information

This hotfix does not replace any other hotfixes.

File information

The English version of this hotfix has the file attributes (or later file attributes) that are listed in the following table. The dates and times for these files are listed in Coordinated Universal Time (UTC). When you view the file information, it is converted to local time. To find the difference between UTC and local time, use the Time Zone tab in the Date and Time tool in Control Panel.

Windows Server 2003, x32-based versions
   Date         Time   Version            Size    File name
   --------------------------------------------------------------
   16-Aug-2005  02:13  6.0.3790.389        9,728  W3comlog.dll     
   16-Aug-2005  02:13  6.0.3790.389      342,528  W3core.dll

Windows Server 2003, x64-based Enterprise Edition
   Date         Time   Version            Size    File name
   --------------------------------------------------------------
   15-Aug-2005  11:04  6.0.3790.389       21,504  W3comlog.dll     IA-64
   15-Aug-2005  11:04  6.0.3790.389      951,296  W3core.dll       IA-64

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