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FIX: When you insert a storage card that has no partition table into a Windows CE 5.0-based device, the volume may not be mounted successfully

When you insert a storage card that has no partition table into a Windows CE 5.0-based device, the volume may not be mounted successfully.
This problem occurs because the GetDOSPartitions function that is called by the MSPART partition driver returns an ERROR_SUCCESS error code when the storage card has no partition table entry. Therefore, the NULLPART partition driver is not loaded and the volume is not mounted.

Software update information

A supported software update is now available from Microsoft as Windows CE 5.0 Platform Builder Monthly Update (October 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


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

Restart requirement

After you apply this software update, you must perform a clean build of the whole platform. To do this, use one of the following methods:
  • On the Build OS menu, make sure that the following options are selected, and then click Sysgen.
    • Clean Before Building
    • Copy Files to Release Directory After Build
    • Make Run-Time Image After Build
  • On the Build OS menu, click Open Release Directory. Then, at a command prompt, type blddemo clean -q, and then press ENTER.
You do not have to restart the computer after you apply this software update.

Update replacement information

This update does not replace any other updates.

File information

The English version of this software update package has the file attributes or the later file attributes that are listed in the following table.

File nameFile sizeDateTime
Wincepb50-081028-kb958403- armv4i.msi542,20828-Oct-200823:49
Wincepb50-081028-kb958403- mipsii.msi545,79228-Oct-200823:49
Wincepb50-081028-kb958403- mipsii_fp.msi545,79228-Oct-200823:49
Wincepb50-081028-kb958403- mipsiv.msi542,20828-Oct-200823:49
Wincepb50-081028-kb958403- mipsiv_fp.msi542,20828-Oct-200823:49
Wincepb50-081028-kb958403- sh4.msi541,18428-Oct-200823:49
Wincepb50-081028-kb958403- x86.msi526,33628-Oct-200823:49

The English version of this software update package 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.
File nameFile versionFile sizeDateTimePlatform
Helper.cpp76,01010-Oct- 200800:10\private\winceos\COREOS\storage\dospart
Mspart.lib122,42810-Jun- 200811:36\public\common\oak\lib\ARMV4I\debug
Mspart.lib84,44410-Jun- 200808:39\public\common\oak\lib\ARMV4I\retail
Mspart.lib113,78610-Jun- 200817:11\public\common\oak\lib\MIPSII\debug
Mspart.lib83,39410-Jun- 200814:22\public\common\oak\lib\MIPSII\retail
Mspart.lib113,82010-Jun- 200822:41\public\common\oak\lib\MIPSII_fp\debug
Mspart.lib83,42610-Jun- 200819:58\public\common\oak\lib\MIPSII_fp\retail
Mspart.lib111,19011-Jun- 200803:59\public\common\oak\lib\mipsiv\debug
Mspart.lib81,24011-Jun- 200801:19\public\common\oak\lib\mipsiv\retail
Mspart.lib111,22411-Jun- 200809:17\public\common\oak\lib\mipsiv_fp\debug
Mspart.lib81,27011-Jun- 200806:35\public\common\oak\lib\mipsiv_fp\retail
Mspart.lib102,77610-Jun- 200806:04\public\common\oak\lib\sh4\debug
Mspart.lib76,37610-Jun- 200803:26\public\common\oak\lib\sh4\retail
Mspart.lib90,16210-Jun- 200800:46\public\common\oak\lib\x86\debug
Mspart.lib70,80009-Jun- 200822:14\public\common\oak\lib\x86\retail
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.
The MSPART partition driver calls the GetDOSPartitions function to traverse the partition table when the driver opens a storage card.

After you apply this software update, the GetDOSPartitions function will return an ERROR_INVALID_DATA error code. Then, the MSPART partition driver will return an ERROR_DEVICE_NOT_PARTITIONED error code. Eventually, the NULLPART partition driver will handle this volume and mount the volume correctly.

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

Article ID: 958403 - Last Review: 11/19/2008 15:52:22 - Revision: 1.0

  • Microsoft Windows CE 5.0
  • kbfix kbexpertiseadvanced kbqfe KB958403
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