Microsoft KB Archive/919479

= Microsoft Windows HTTP Services (WinHTTP) may not connect through the proxy server when you use proxy autoconfiguration in Microsoft Windows Server 2003 =

Article ID: 919479

Article Last Modified on 10/11/2007

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APPLIES TO


 * Microsoft Windows Server 2003, Standard Edition (32-bit x86)
 * Microsoft Windows Server 2003, Enterprise Edition
 * Microsoft Windows Server 2003, Standard x64 Edition
 * Microsoft Windows Server 2003, Enterprise x64 Edition
 * Microsoft Windows Server 2003, Enterprise Edition for Itanium-based Systems
 * Microsoft Windows Server 2003 R2 Standard Edition (32-bit x86)
 * Microsoft Windows Server 2003 R2 Enterprise Edition (32-Bit x86)
 * Microsoft Windows Server 2003 R2 Standard x64 Edition
 * Microsoft Windows Server 2003 R2 Enterprise x64 Edition

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SYMPTOMS
When you use proxy autoconfiguration for Internet Explorer connectivity in Microsoft Windows Server 2003, Microsoft Windows HTTP Services (WinHTTP) may not connect through the proxy server.



CAUSE
This problem occurs because WinHTTP does not read the location of the proxy autoconfiguration .pac file from the registry. The automatic configuration script file writes this location to the registry.



Service pack information
To resolve this problem, obtain the latest service pack for Windows Server 2003. For more information, click the following article number to view the article in the Microsoft Knowledge Base:

889100 How to obtain the latest service pack for Windows Server 2003

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 item in Control Panel.

Windows Server 2003, Itanium-based versions


STATUS
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the &quot;Applies to&quot; section. This problem was first corrected in Windows Server 2003 Service Pack 2.



MORE INFORMATION
The automatic configuration script file contains the string that WinHTTP needs. The string resembles the following string. AutoConfigJSURL=http://www.contoso.com/proxy.pac For more information about the fix for this issue in Microsoft Windows XP, click the following article number to view the article in the Microsoft Knowledge Base:

919477 WinHTTP may not connect through a proxy server if proxy auto-configuration is used for Internet Explorer connectivity in Windows XP

For more information about the terms that are used in this article, click the following article number to view the article in the Microsoft Knowledge Base:

824684 Description of the standard terminology that is used to describe Microsoft software updates

Keywords: kbbug kbfix kbqfe kbpubtypekc kbhotfixserver kbwinserv2003presp2fix kbwinserv2003sp2fix KB919479

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