You may receive an access violation error message under the following conditions:
- Your computer is running Microsoft Windows 2000 or later.
- Your computer is running an application that sets a WinEvent hook.
- You start an application that uses the ListView control or the TreeView control from
Microsoft Windows Common Controls 5.0 (Comctl32.ocx).
You may receive an
error message similar to the following:
Project1: Project1.exe - Application Error
The instruction at "0x202d0f51" referenced memory at "0xC0000094". The memory could not be "written".
Click on OK to terminate the program
Typically, accessibility applications that are built on Microsoft Active Accessibility, such as Narrator, set a WinEvent hook. However, utilities that run on the Microsoft Windows XP Tablet PC Edition operating system also set a WinEvent hook.
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 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
18-Aug-2003 20:25 18.104.22.168 1,344,512 Comctl32.ocx
Microsoft has confirmed that this is a bug in the Microsoft products that are listed in the "Applies to" section.
For more information, click the following article number to view the article in the Microsoft Knowledge Base:
FIX: The Windows Common Controls Mscomctl.ocx or Comctl32.ocx may cause your application or the Visual Basic 6 IDE to unexpectedly quit, or you may receive a "Divide By Zero" error message