Symptoms
Consider the following scenario:
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You have a custom module that is based on the Microsoft .NET Framework.
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The custom module runs in Internet Information Services (IIS) 8.0 on a computer that is running Windows 8 or Windows Server 2012.
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The Microsoft IIS Application Request Routing (ARR) 2.5 feature is enabled.
In this scenario, ARR intermittently freezes and no longer serves any requests.
Cause
This issue occurs because of a deadlock situation that occurs in ARR.
Resolution
Download information
To download the hotfix, go to the following Microsoft Download Center website:
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.
Prerequisites
To apply this hotfix, you must have IIS 8.0 installed in Windows 8 or Windows Server 2012.
Restart requirement
You do not have to restart the computer after you apply this 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.
