Microsoft KB Archive/888617

= FIX: You may experience a deadlock condition in your compiled application when you use threads to create a control and to destroy a control in Visual Basic Enterprise Edition for Windows 6.0 =

Article ID: 888617

Article Last Modified on 4/7/2006

-

APPLIES TO


 * Microsoft Visual Basic 6.0 Enterprise Edition

-





SYMPTOMS
You may experience a deadlock condition in your compiled application when you use threads to create a control and to destroy a control. The problem may occur when you create a multithreaded application that creates and destroys Visual Basic 6.0 controls (OCXs) that have different threads. You may experience a deadlock condition in the MSVBVM60 DLL. This may cause your application to stop responding in Microsoft Visual Basic Enterprise Edition for Windows 6.0.

Note Hosting Visual Basic 6.0 controls in a multithreaded environment with a dynamic threadpool is not supported. Each one of the following applications may use a dynamic threadpool to create threads and to destroy threads:
 * Internet Information Services (IIS)
 * Microsoft Transaction Server (MTS)
 * COM+

For additional information, click the following article number to view the article in the Microsoft Knowledge Base:

307211 You can configure the Unattended Execution option and the Retained in Memory option in the latest version of Msvbvm60.dll



RESOLUTION
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. 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 tool in Control Panel.

Date        Time   Version      Size     File name -- 02-Nov-2004 00:16  6.0.97.86  1,373,968  Msvbvm60.dll



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

Keywords: kbbug kbfix kbqfe kbvbp600fix kbexpertiseadvanced kbhotfixserver KB888617

-

[mailto:TECHNET@MICROSOFT.COM Send feedback to Microsoft]

© Microsoft Corporation. All rights reserved.