You have a large Visual Basic project in Microsoft Visual Studio 2010.
The project contains user tasks or comments in the Task list, or errors in the Error list.
You try to close the project
In this scenario, you experience the following symptoms:
The Visual Studio IDE crashes.
You receive the event error CLR20r3 in the Msvbide.dll module or in the Devenv.exe module.
A supported hotfix is now available from Microsoft. However, it is intended to correct only the problem that is described in this article. Apply it only to systems that are experiencing this specific problem. This hotfix may 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 resolve this problem immediately, download the hotfix from the following Microsoft website:
You can also contact Microsoft Customer Support Services to obtain the hotfix. For a complete list of Microsoft Customer Support Services telephone numbers and information about support costs, visit the following Microsoft website:
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.
You must have Visual Studio 2010 installed to apply this hotfix.
You do not have to restart the computer after you apply the hotfix if no instance of Visual Studio is being used.
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.
To work around this problem, delete the errors or user tasks before you close the project.
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.