Assume that you run a load test in Microsoft Visual Studio 2010 or in Microsoft Test Manager 2010. Additionally, assume that the network is unstable, and there are multiple reconnections between a test controller and test agents during the load test. In this situation, the test controller (QTController.exe) may crash and an ObjectDisposedException exception may occur. Additionally, the following error is written to the event log:

Object Disposed Exception:
(QTController.exe, PID Number, Thread Number) Exception data being reported in Watson: Exception: ObjectDisposedException
Message: Safe handle has been closed



Resolution

Hotfix information

A supported hotfix is now available from Microsoft. However, it is intended to correct only the problem that this article describes. Apply it only to systems that are experiencing this specific problem.

To resolve this problem, 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:

http://support.microsoft.com/contactus/?ws=supportNote 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.

Prerequisites

To apply this hotfix, you must have Visual Studio 2010 Service Pack 1 (SP1) installed.

Restart requirement

You do not have to restart the computer after you install the hotfix if the affected files are not being used. We recommend that you close all Visual Studio 2010-related components before you install the hotfix.

File information

The global 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.

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