Microsoft KB Archive/937972

= Error message when a client user tries to use a mobile device to access a Web site that is published in ISA Server 2006: &quot;500 Error - Element not Found&quot; =

Article ID: 937972

Article Last Modified on 7/12/2007

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APPLIES TO


 * Microsoft Internet Security and Acceleration Server 2006 Standard Edition
 * Microsoft Internet Security and Acceleration Server 2006 Enterprise Edition

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SYMPTOMS
Consider the following scenario:
 * You publish a Web site in Microsoft Internet Security and Acceleration (ISA) Server 2006.
 * In the Web listener, ISA Server is configured to use forms-based authentication to authenticate client requests.

However, when a client user tries to access the published Web site by using a mobile device, the user receives the following error message:

500 Error - Element not Found



CAUSE
This problem occurs if the client device sends an &quot;Accept&quot; header that contains &quot;text/vnd.wap.wml&quot; in the HTTP request. In this situation, ISA Server incorrectly handles the “Accept” header.



RESOLUTION
A hotfix package is available to resolve this problem. For more information, click the following article number to view the article in the Microsoft Knowledge Base:

938517 Description of the Internet Security and Acceleration Server 2006 hotfix package that is dated June 5, 2007



STATUS
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the &quot;Applies to&quot; section.

Keywords: kberrmsg kbtshoot kbexpertiseinter kbprb KB937972

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