Microsoft KB Archive/937037

= Some large interlaced PNG files do not appear correctly, and you receive an error message in Windows Server 2003 =

Article ID: 937037

Article Last Modified on 10/11/2007

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APPLIES TO

 Microsoft Windows Server 2003 Service Pack 2, when used with:  Microsoft Windows Server 2003, Standard Edition (32-bit x86)

 Microsoft Windows Server 2003, Enterprise Edition

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

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

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

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

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

 Microsoft Windows Server 2003, Datacenter Edition for Itanium-Based Systems</li></ul> </li> Microsoft Windows Server 2003 SP1, when used with:  Microsoft Windows Server 2003, Standard Edition (32-bit x86)</li></ul>

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

 Microsoft Windows Server 2003, Datacenter Edition (32-bit x86)</li></ul>

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

<ul> <li>Microsoft Windows Server 2003, Datacenter Edition for Itanium-Based Systems</li></ul> </li> <li>Microsoft Windows Server 2003, Standard x64 Edition</li> <li>Microsoft Windows Server 2003, Enterprise x64 Edition</li> <li>Microsoft Windows Server 2003, Datacenter x64 Edition</li></ul>

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<div class="symptoms_section">

SYMPTOMS
On a computer that is running Microsoft Windows Server 2003, some large interlaced Portable Network Graphic (PNG) files do not appear correctly. You may also encounter one or more of the following symptoms: <ul> <li>When you try to open a PNG file by using a .NET Framework 2.0 function, you receive the following error message:

A generic error occurred in GDI+

</li> <li>When you open a PNG file by using Windows Picture and Fax Viewer, you receive the following error message:

Drawing failed

</li> <li>When you open a PNG file by using Paint (Mspaint.exe), you receive the following error message:

Paint cannot read this file. This is not a valid bitmap file, or its format is currently not supported

</li></ul>

Note This problem does not occur in Windows Server 2003 without a service pack installed. This problem occurs only after you install Windows Server 2003 Service Pack 1 (SP1) or Windows Server 2003 Service Pack 2 (SP2). However, because x64-based versions of Windows Server 2003 includes the features and fixes that are included in Windows Server 2003 SP1, this problem may also occur in these versions.

<div class="cause_section">

CAUSE
This problem occurs because a security tightening is included in Windows Server 2003 SP1 and in Windows Server 2003 SP2. This security tightening incorrectly limits how interlaced PNG files are processed.

<div class="resolution_section">

Hotfix information
A supported hotfix is now available from Microsoft. However, it is only intended to correct the problem that is described in this article. Only apply it to systems that are experiencing this specific problem. This hotfix may receive additional testing. Therefore, if you are not severely affected by this problem, we recommend that you wait for the next Windows Server 2003 service pack that contains this hotfix.

To resolve this problem immediately, contact Microsoft Customer Support Services to obtain the hotfix. For a complete list of Microsoft Customer Support Services telephone numbers and information about support costs, visit the following Microsoft Web site:

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

Note In special cases, charges that are ordinarily incurred for support calls may be canceled if a Microsoft Support Professional determines that a specific update will resolve your problem. The usual support costs will apply to additional support questions and issues that do not qualify for the specific update in question.

Prerequisites
To apply this hotfix, you must have Windows Server 2003 with SP1, Windows Server 2003 SP2, or an x64-based version of Windows Server 2003 installed.

Restart requirement
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 item in Control Panel.

Windows XP, x64-based versions
<div class="status_section">

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

<div class="moreinformation_section">

MORE INFORMATION
The PNG format is a platform-independent format that supports a high level of lossless compression, alpha channel transparency, gamma correction, and interlacing. The PNG format is supported by more recent Web browsers.

Interlacing is a method to send picture data over the Internet. When a picture is interlaced, you see a general impression of the picture after one sixty-fourth of it has been downloaded. As more of the image is downloaded, resolution improves until the whole picture appears.

For more information about the PNG picture format, click the following article number to view the article in the Microsoft Knowledge Base:

272399 Guidelines for selecting the appropriate picture format

For more information about the terms that are used to describe 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: kbqfe kbexpertiseinter kbhotfixserver kbwinserv2003postsp2fix KB937037

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