FIX: STI Application Stops Responding When You Try to Use UnLockDevice() to Unlock the Device

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Article ID: 323571 - View products that this article applies to.
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Symptoms

In certain instances, a Still Image Architecture (STI) application that successfully locked a device may stop responding (hang) indefinitely when you use the UnLockDevice method to try to unlock the device.

Cause

This problem occurs because the Windows Image Acquisition (WIA) service is deadlocked at this time and cannot process any more WIA or STI requests.

Resolution

To resolve this problem, obtain the latest service pack for Windows XP. For additional information, click the following article number to view the article in the Microsoft Knowledge Base:
322389 How to Obtain the Latest Windows XP Service Pack

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 this specific problem. 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:
http://support.microsoft.com/contactus/?ws=support
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.

File information

The English version of this fix has the file attributes (or later) 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 tool in Control Panel.
   Date         Time    Version        Size    File Name
   -----------------------------------------------------
   11-Jun-2002  10:29   5.2.2.8        3,584   Spmsg.dll
   19-Jun-2002  15:48   5.1.2600.48   61,952   Sti.dll
   11-Jun-2002  15:50   5.1.2600.48  314,368   Wiaservc.dll
				

Status

Microsoft has confirmed that this is a bug in the Microsoft products that are listed at the beginning of this article. This problem was first corrected in Windows XP Service Pack 1.

More information

This problem occurs because of a bad assumption about which thread ID the lock belongs to. The WIA service uses the thread ID of the remote procedure call (RPC) instead of the thread ID of the client. Because RPC uses a thread pool, incoming requests may be processed on different threads, which causes the thread ID mismatch.
Note This is a "FAST PUBLISH" article created directly from within the Microsoft support organization. The information contained herein is provided as-is in response to emerging issues. As a result of the speed in making it available, the materials may include typographical errors and may be revised at any time without notice. See Terms of Use for other considerations.

Properties

Article ID: 323571 - Last Review: January 12, 2015 - Revision: 1.0
Applies to
  • Microsoft Windows XP Professional
Keywords: 
kbnosurvey kbarchive kbautohotfix kbhotfixserver kbqfe kbbug kbfix kbshell kbwinxpsp1fix KB323571

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