You have a custom editor or designer that is integrated into the Visual Studio 2010 development environment.
The editor or designer is implemented in managed code.
The editor or designer hosts a VsCodeWindow code editor as a child control.
In this scenario, some debugger commands may be disabled or hidden in the code editor. For example, the Add Breakpoint command may be hidden or disabled. Additionally, other debugger commands may not function correctly.
This issue occurs because of an error in the debugger package (Vsdebug.dll) that is included in Visual Studio 2010.
A supported hotfix is available from Microsoft. However, this hotfix is intended to correct only the problem that is described in this article. Apply this hotfix only to systems that are experiencing this specific problem. This hotfix might receive additional testing. Therefore, if you are not severely affected by this problem, we recommend that you wait for the next software update that contains this hotfix.
To download this hotfix from the MSDN Code Gallery, visit the following Microsoft website:
Note The MSDN Code Gallery displays the languages for which the hotfix is available. If you do not see your language listed, it is because the Code Gallery resource page is not available for that language.
Note If additional issues occur or if any troubleshooting is required, you might have to create a separate service request. The usual support costs will apply to additional support questions and issues that do not qualify for this specific hotfix. For a complete list of Microsoft Customer Service and Support telephone numbers or to create a separate service request, visit the following Microsoft website:
To apply this hotfix, you must have Visual Studio 2010 installed.
You do not have to restart the computer after you apply the hotfix.
Hotfix replacement information
This hotfix does not replace any other hotfixes.
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 item in Control Panel.
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.
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