Microsoft KB Archive/821144

= Message Queuing applications may stop responding because of a deadlock in MQSEC.DLL =

Article ID: 821144

Article Last Modified on 10/25/2005

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APPLIES TO


 * Microsoft Message Queuing 2.0

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SYMPTOMS
Applications that are written to use Microsoft Message Queuing may stop responding (hang) because of a deadlock. There are no event errors, no error messages, or any other evidence that helps identify the problem.



CAUSE
A deadlock situation may occur in Mqsec.dll. This problem occurs because Mqsec.dll makes indirect remote procedure calls (RPCs) in the DLLMain function. The deadlock occurs when several threads load Mqsec.dll at the same time.



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

To resolve this problem, contact Microsoft Product Support Services to obtain the hotfix. For a complete list of Microsoft Product Support Services telephone numbers and information about support costs, visit the following Microsoft Web site:

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

Note In special cases, charges that are ordinarily incurred for support calls may be canceled if a Microsoft Support Professional determines that a specific update will resolve your problem. The usual support costs will apply to additional support questions and issues that do not qualify for the specific update in question.

Prerequisites
No prerequisites are required.

Restart Requirement
You must restart your computer after you apply this hotfix

Hotfix Replacement Information
This hotfix supersedes all previous Message Queuing fixes.

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 --  13-May-2003  22:29  5.3.16.5   988,712  Q821144_w2k_sp5_x86_en.exe 13-May-2003 19:59  5.0.0.766  281,360  Mq1repl.dll 04-Feb-2003 15:51  5.0.0.766   14,096  Mq1sync.exe 26-Mar-2003 16:27  5.0.0.774   75,536  Mqac.sys 13-May-2003 19:59  5.0.0.773  217,360  Mqads.dll 30-Oct-2002 16:43  5.0.0.761   25,360  Mqbkup.exe 13-May-2003 19:59  5.0.0.750   76,560  Mqdscli.dll 13-May-2003 19:59  5.0.0.773   42,256  Mqdssrv.dll 21-Oct-2002 20:31  5.0.0.759   98,064  Mqmig.exe 13-May-2003 19:59  5.0.0.759  265,488  Mqmigrat.dll 13-May-2003 19:59  5.0.0.740  222,480  Mqoa.dll 13-May-2003 19:59  5.0.0.762    8,464  Mqperf.dll 13-May-2003 19:59  5.0.0.776  428,304  Mqqm.dll 13-May-2003 19:59  5.0.0.776  102,672  Mqrt.dll 13-May-2003 19:59  5.0.0.776   70,928  Mqsec.dll 13-May-2003 19:59  5.0.0.769  400,656  Mqsnap.dll 13-May-2003 19:59  5.0.0.762   23,824  Mqupgrd.dll 13-May-2003 19:59  5.0.0.767  110,352  Mqutil.dll 13-May-2003 19:59  5.0.0.748   64,784  Msmq.cpl



STATUS
Microsoft has confirmed that this is a problem in the Microsoft products that are listed at the beginning of this article.



MORE INFORMATION
For additional information about how hotfix packages are named, click the following article number to view the article in the Microsoft Knowledge Base:

816915 New Naming Schema for Microsoft Windows Hotfix Packages

Additional query words: globalmutex loaderlock MSMQ

Keywords: kbbug kbfix kbqfe kbwin2000presp5fix kbhotfixserver KB821144

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