Microsoft KB Archive/826297

= FIX: An Invalid Handle Exception Occurs When You Use the ReceiveBy or ReceiveByCorrelationID Methods with Multiple Threads =

Article ID: 826297

Article Last Modified on 10/25/2005

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APPLIES TO


 * Microsoft Message Queuing 3.0
 * Microsoft .NET Framework 1.0

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SYMPTOMS
When you use the ReceiveBy method or the ReceiveByCorrelationID method with multiple threads against the same message queue, an invalid handle exception may occur. You may receive the following error message:

An invalid handle was passed to the function. (Error code: 0xc00e0007)



CAUSE
The ReceiveBy method and the ReceiveByCorrelationID method use the MessageEnumerator class, but they do not destroy the MessageEnumerator object that was created after they return.



WORKAROUND
To work around this problem, do not use the ReceiveBy method and the ReceiveByCorrelationID method. To implement a MessageEnumerator object, run the following code: try {   while (messagesEnumerator.MoveNext(timespan)) {       Message message = (Message) messagesEnumerator.Current; if (String.Compare(message.CorrelationId, correlationID,true, System.Globalization.CultureInfo.InvariantCulture) == 0) {           ResponseMsg = messagesEnumerator.RemoveCurrent; }      } } catch (MessageQueueException mqe) {   … }

finally {   if (messagesEnumerator != null) messagesEnumerator.Close; }



RESOLUTION
A supported hotfix is now available from Microsoft, but it is only intended to correct the problem that is described in this article. Only apply it to systems that are experiencing this specific problem. This hotfix may receive additional testing. Therefore, if you are not severely affected by this problem, Microsoft recommends that you wait for the next Microsoft .NET Framework 1.1 service pack that contains this hotfix.

To resolve this problem immediately, 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.

The English version of this hotfix 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 03-Aug-2003 14:00  1.0.3705.446      241,664  System.messaging.dll



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

Additional query words: MSMQ

Keywords: kberrmsg kbfix kbthread kbqfe kbhotfixserver KB826297

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