Update to improve Diagnostic Tools in Visual Studio 2015


As a developer, you may notice that the Microsoft.VsHub.Server.HttpHostx64.exe process may crash when you debug your program. This causes a failed diagnostics session. Additionally, Microsoft Visual Studio may stop responding when you debug Azure Service Fabric projects.


These problems occur because of race conditions in Visual Studio Diagnostic Tools that may cause the tools to fail during debugging. The race conditions cause the Microsoft.VsHub.Server.HttpHostx64.exe process to crash or the Visual Studio instance to stop responding when you debug.


This update is available from the Microsoft Download Center.

Microsoft Download Center

The following file is available for download from the Microsoft Download Center:
For more information about how to download Microsoft support files, click the following article number to view the article in the Microsoft Knowledge Base:
119591 How to obtain Microsoft support files from online services
Microsoft scanned this file for viruses. Microsoft used the most current virus-detection software that was available on the date that the file was posted. The file is stored on security-enhanced servers that help prevent any unauthorized changes to the file.


There are no prerequisites to apply this hotfix.

Restart information

You may have to restart the computer after you apply this hotfix.

Replacement information

This hotfix does not replace any previously released hotfix.

File information

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.

File nameFile versionFile sizeDateTimePlatform


Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.


Learn about the terminology that Microsoft uses to describe software updates.

Article ID: 3090034 - Last Review: 25 Sep 2015 - Revision: 1