When you try to view a very large JPEG image on a Windows Vista-based DLNA server from a DLNA client, the JPEG image is corrupted

Consider the following scenario. On a Windows Vista-based computer, you share media by using the Windows Media Player Network Sharing Service. Additionally, you configure the computer as a Digital Living Network Alliance (DLNA) server. Then, you try to view a JPEG image on the DLNA server from a DLNA client, such as from DLNA-aware TV. However, if the JPEG image's height or width is larger than 4096 pixels, the image is corrupted.

This problem occurs because the Windows codecs do not correctly handle color information for very large images.

Hotfix information

A supported hotfix is available from Microsoft. However, this hotfix is intended to correct only the problem that is described in this article. Apply this hotfix only to systems that are experiencing the problem described in this article. This hotfix might receive additional testing. Therefore, if you are not severely affected by this problem, we recommend that you wait for the next software update that contains this hotfix.

If the hotfix is available for download, there is a "Hotfix download available" section at the top of this Knowledge Base article. If this section does not appear, contact Microsoft Customer Service and Support to obtain the hotfix.

Note If additional issues occur or if any troubleshooting is required, you might have to create a separate service request. The usual support costs will apply to additional support questions and issues that do not qualify for this specific hotfix. For a complete list of Microsoft Customer Service and Support telephone numbers or to create a separate service request, visit the following Microsoft Web site: Note The "Hotfix download available" form displays the languages for which the hotfix is available. If you do not see your language, it is because a hotfix is not available for that language.

Prerequisites

To apply this hotfix on Windows Vista-based computer, you must have Windows Vista SP1 installed.

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

Restart requirement

You do not have to 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 Vista and Windows Server 2008 file information notes

The MANIFEST files (.manifest) and the MUM files (.mum) that are installed for each environment are listed separately . MUM and MANIFEST files, and the associated security catalog (.cat) files, are critical to maintaining the state of the updated component. The security catalog files (attributes not listed) are signed with a Microsoft digital signature.

For all supported x86-based versions of Windows Vista

For all supported x64-based versions of Windows Vista

To work around this problem, reduce the image size so that the height and width are less than 4096 pixels.

Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.

For more information, visit the following Microsoft Web site:

Additional file information for Windows Vista

Additional files for all supported x86-based versions of Windows Vista

Additional files for all supported x64-based versions of Windows Vista