FIX: Memory usage increases when you use File Explorer to open or to modify a file that does not have a file name extension in Windows Embedded CE 6.0

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Article ID: 953953 - View products that this article applies to.
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SYMPTOMS

In Windows Embedded CE 6.0, memory usage increases when you use File Explorer to open or to modify a file that does not have a file name extension.

CAUSE

This problem occurs because File Explorer assigns a new icon directly to the file that does not have a file name extension instead of checking the icon cache. Therefore, a new icon is added to the icon cache every time that you open or modify the file. Additionally, the new icons are never released.

RESOLUTION

Software update information

A supported software update is now available from Microsoft as Windows CE 6.0 Platform Builder Monthly Update (July 2008). You can confirm this by scrolling to the "File information" section of this article. The package file name contains the product version, date, Knowledge Base article number, and processor type. The package file name format is:
Product version-yymmdd-kbnnnnnn-processor type
For example: Wincepb50-060503-kb917590-armv4i.msi is the ARMV4i Windows CE 5.0 Platform Builder fix that is documented in KB article 917590 and that is contained in the May 2006 monthly update. To resolve this problem immediately, click the following article number for information about obtaining Windows CE Platform Builder and core operating system software updates:
837392 How to locate core operating system fixes for Microsoft Windows CE Platform Builder products

Prerequisites

This update is supported only if all previously issued updates for this product are also installed.

Restart requirement

After you apply this update, you must perform a clean build of the whole platform. To do this, use one of the following methods:
  • On the Build menu, click Clean, and then click Build Platform.
  • On the Build menu, click Rebuild Platform.
You do not have to restart the computer after you apply this update.

Update replacement information

This update does not replace any other updates.

File information

The English version of this package has the file attributes (or later file attributes) that are listed in the following table.
Collapse this tableExpand this table
File nameFile sizeDateTime
Wincepb60-080702-kb953953-armv4i.msi1,020,41602-Jul-200819:19
Wincepb60-080702-kb953953-mipsii.msi992,25602-Jul-200819:19
Wincepb60-080702-kb953953-mipsii_fp.msi992,76802-Jul-200819:19
Wincepb60-080702-kb953953-mipsiv.msi998,91202-Jul-200819:19
Wincepb60-080702-kb953953-mipsiv_fp.msi999,42402-Jul-200819:19
Wincepb60-080702-kb953953-sh4.msi982,01602-Jul-200819:19
Wincepb60-080702-kb953953-x86.msi935,93602-Jul-200819:19
The English version of this update 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.
Collapse this tableExpand this table
File nameFile sizeDateTimePath
Windows embedded ce 6.0_update_kb953953.htm7,80602-Jul-200818:55080702_kb953953
Iconcache.cpp23,22512-Jun-200816:17Public\Shell\Oak\Hpc\Ceshell\Api
Ceshapi.lib801,63212-Jun-200816:15Public\Shell\Oak\Lib\Armv4i\Debug
Ceshapi.lib658,51412-Jun-200816:14Public\Shell\Oak\Lib\Armv4i\Retail
Ceshapi.lib756,66012-Jun-200816:15Public\Shell\Oak\Lib\Mipsii\Debug
Ceshapi.lib631,68012-Jun-200816:15Public\Shell\Oak\Lib\Mipsii\Retail
Ceshapi.lib756,72012-Jun-200816:16Public\Shell\Oak\Lib\Mipsii_fp\Debug
Ceshapi.lib631,79412-Jun-200816:15Public\Shell\Oak\Lib\Mipsii_fp\Retail
Ceshapi.lib769,44412-Jun-200816:16Public\Shell\Oak\Lib\Mipsiv\Debug
Ceshapi.lib638,72212-Jun-200816:16Public\Shell\Oak\Lib\Mipsiv\Retail
Ceshapi.lib769,50412-Jun-200816:17Public\Shell\Oak\Lib\Mipsiv_fp\Debug
Ceshapi.lib638,83612-Jun-200816:16Public\Shell\Oak\Lib\Mipsiv_fp\Retail
Ceshapi.lib672,28012-Jun-200816:17Public\Shell\Oak\Lib\Sh4\Debug
Ceshapi.lib578,40412-Jun-200816:17Public\Shell\Oak\Lib\Sh4\Retail
Ceshapi.lib642,01812-Jun-200816:14Public\Shell\Oak\Lib\X86\Debug
Ceshapi.lib577,75412-Jun-200816:14Public\Shell\Oak\Lib\X86\Retail

STATUS

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

MORE INFORMATION

File Explorer assigns an icon to each file in a list based on the file name extension. Items in the icon cache are never released. Therefore, memory usage increases every time that you open or modify the file. If File Explorer is part of the shell, the leak persists until the device is reset.

For more information about software update terminology, 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

Properties

Article ID: 953953 - Last Review: October 8, 2011 - Revision: 2.0
APPLIES TO
  • Windows Embedded CE 6.0
Keywords: 
kbexpertiseadvanced kbqfe kbfix KB953953

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