FIX: Memory Leak in the ToolBar Control

This article has been archived. It is offered "as is" and will no longer be updated.
When you repeatedly load and unload a form or UserControl that hosts a ToolBar control, and the ToolBar control has one or more buttons, a memory leak occurs. The leak appears as a continual increase in Mem Usage size in Task Manager, or as an increase in Private Bytes in Performance Monitor each time that you load or unload the form or UserControl.
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.

Note You must have a Visual Studio license agreement to obtain this hotfix.

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: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 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   ------------------------------------------------------   15-Jan-2003  03:38  1,074,688  Mscomctl.ocx

Article ID: 812939 - Last Review: 02/27/2014 21:16:33 - Revision: 2.4

Microsoft Visual Basic 6.0 Enterprise Edition, Microsoft Visual Basic 6.0 Enterprise Edition Service Pack 3, Microsoft Visual Basic 6.0 Enterprise Edition Service Pack 4, Microsoft Visual Basic 6.0 Enterprise Edition Service Pack 5

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