Microsoft KB Archive/183283

= Internet Explorer Through Proxy to IIS May Stop on Page with Java or ASP Scripts =

Article ID: 183283

Article Last Modified on 9/22/2005

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APPLIES TO


 * Microsoft Internet Explorer 4.01 128-Bit Edition
 * Microsoft Internet Explorer 4.01 128-Bit Edition
 * Microsoft Internet Information Server 4.0
 * Microsoft Proxy Server 2.0 Standard Edition

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This article was previously published under Q183283



We strongly recommend that all users upgrade to Microsoft Internet Information Services (IIS) version 6.0 running on Microsoft Windows Server 2003. IIS 6.0 significantly increases Web infrastructure security. For more information about IIS security-related topics, visit the following Microsoft Web site:

http://www.microsoft.com/technet/security/prodtech/IIS.mspx



SYMPTOMS
When Internet Explorer version 4.01 connects through Microsoft Proxy Server version 2.0 to a Microsoft Internet Information Server (IIS) 4.0 computer, Internet Explorer may hang when you refresh a page that contains Java or ASP scripts. The page will be incomplete, and the images may fail to download.

NOTE: This problem will not occur if you use IIS version 3.0, or if you use Microsoft Internet Explorer version 3.0 to access an IIS 4.0 computer.



CAUSE
A content-length header may be missing from the IIS 4.0 HTTP response.



RESOLUTION
To resolve this problem, obtain the Microsoft Proxy Server 2.0 Service Pack 1. For additional information on Service Pack 1, please reference the following Microsoft Knowledge Base article:

238375 Proxy Server 2.0 Service Pack 1: List of Fixes



WORKAROUND
To work around this problem, contact the administrator of the Web site, and ask him or her to contact Microsoft Product Support Services to obtain and install the IIS fix discussed below.



STATUS
Microsoft has confirmed that this is a problem in the Microsoft products that are listed at the beginning of this article.



MORE INFORMATION
There are two fixes available for this problem, one for IIS 4.0 and one for Proxy Server 2.0. The IIS fix can be applied to any IIS 4.0 Web server that users connect to using Internet Explorer version 4.x.

Because this problem occurs more frequently when Microsoft Internet Explorer 4.x connects through Microsoft Proxy Server to an IIS 4.0 Web site, a fix has been created for Microsoft Proxy Server 2.0. This version of the fix can be installed on the Proxy Server computer and is the preferred solution because it will correct the problem for connections to ALL IIS 4.0 web sites.

Keywords: kbbug kbfix kbqfe kbfaq kbhotfixserver KB183283

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