Microsoft KB Archive/933463

= FIX: Managed applications that use SQL Server 2005 Mobile Edition may stop unexpectedly if the location of the SQL Mobile DLLs changes =

Article ID: 933463

Article Last Modified on 11/4/2007

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APPLIES TO


 * Microsoft SQL Server 2005 Mobile Edition

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Bug #: 50000879 (SQL Hotfix)



SYMPTOMS
On Microsoft Windows Powered Pocket PC 2003 ARMV4-compatible devices, managed applications that use Microsoft SQL Server 2005 Mobile Edition may stop unexpectedly. This problem occurs if the location of the SQL Mobile DLLs changes.



CAUSE
When the SQL Mobile DLLs are unloaded from memory, the associated window class stays registered. The next time that the DLLs are loaded into memory, the window class still points to the earlier location because the window class was not unregistered. This behavior causes the crash.

The correct behavior is as follows:
 * The window class is unregistered when the DLLs are unloaded.
 * Then, the window class is reregistered when the DLLs are reloaded.



Hotfix information
A supported hotfix is now available from Microsoft. However, this hotfix is intended to correct only the problem that this article describes. Apply this hotfix only to systems that are experiencing this specific problem.

To resolve this problem, submit a request to Microsoft Online Customer Services to obtain the hotfix. To submit an online request to obtain the hotfix, visit the following Microsoft Web site:

http://go.microsoft.com/?linkid=6294451

Note If additional issues occur or 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. To create a separate service request, visit the following Microsoft Web site:

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

Installation information
This hotfix is available for Microsoft Windows Powered Pocket PC 2003 ARMV4-compatible devices.

Instructions for customers who are running SQL Mobile 3.0
Follow these steps:
 * 1) Verify that you are running the original release version of SQL Server 2005 Mobile Edition or a previous hotfix version of SQL Server 2005 Mobile Edition. Then, uninstall this version of SQL Server 2005 Mobile Edition.
 * 2) Apply the hotfix.

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.

For ARMV4i-based devices
Note Because of file dependencies, the most recent hotfix or feature that contains these files may also contain additional files.



WORKAROUND
To work around this problem, do not unload the SQL Mobile DLLs from memory.



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

Additional query words: Exception SQL Mobile Compact

