Microsoft KB Archive/918689

= A memory leak occurs when you use WinHTTP to access a Web server over an SSL connection =

Article ID: 918689

Article Last Modified on 10/11/2007

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APPLIES TO

 Microsoft Windows Server 2003 SP1, when used with:  Microsoft Windows Server 2003, Enterprise Edition

 Microsoft Windows Server 2003, Standard Edition (32-bit x86)

 Microsoft Windows Server 2003, Web Edition

 Microsoft Windows Server 2003, Enterprise Edition for Itanium-based Systems</li></ul>

 Microsoft Windows Server 2003, Datacenter Edition for Itanium-Based Systems</li></ul>

 Microsoft Windows Server 2003, Enterprise x64 Edition</li></ul>

 Microsoft Windows Server 2003, Datacenter x64 Edition</li></ul> </li></ul>

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SYMPTOMS
When you use the Microsoft Windows HTTP Services (WinHTTP) on a Microsoft Windows Server 2003 Service Pack 1 (SP1)-based computer to access a Web server over a Secure Sockets Layer (SSL) connection, a memory leak occurs in the process that uses WinHTTP.

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CAUSE
This problem occurs if the client uses SSL to connect to a Web server that does not transmit a &quot;server&quot; header to the client request. The problem occurs because of a bug in the Winhttp.dll component.

You may not experience this problem if you use WinHTTP without using an SSL connection.

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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

Prerequisites
Your computer must be running Windows Server 2003 Service Pack (SP1) to apply this hotfix.

Restart Requirement
You do not have to restart your 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 item in Control Panel.

Windows Server 2003, x86-based version
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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.

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MORE INFORMATION
For more information about WinHTTP, visit the following Microsoft Web site:

http://msdn2.microsoft.com/en-us/library/aa382925.aspx

For more information about the standard terminology that is used to describe Microsoft software updates, 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 kbwinserv2003presp1fix kbhotfixserver kbwinserv2003sp2fix KB918689

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