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FIX: "Error Opening installation log file" error message when you try to install or uninstall a hotfix for Host Integration Server when some antivirus software programs are installed

SYMPTOMS
When you try to install or uninstall a hotfix for Microsoft Host Integration Server, the operation may fail, and you receive the following error message:
Error Opening installation log file. Verify that the specified log file location exists and is writable.

Note This issue is known to occur on a computer that has some antivirus software programs, such as Forefront Endpoint Protection 2010, installed and enabled.
CAUSE
This issue occurs because of a timing issue. When you install or uninstall a hotfix, the Setup program (Setup.exe) runs, locking the log file in exclusive mode. Then, the Setup program starts Msiexec.exe. The Setup program tries to write to the log file before the program exits. However, some antivirus software may cause the log file closure to be delayed as the antivirus software is scanning files. This behavior may cause Msiexec.exe to receive a sharing violation when it tries to access the Setup.log file.
RESOLUTION

Hotfix information

Microsoft Host Integration Server 2010

The hotfix that resolves this issue is included in cumulative update package 2 for Host Integration Server 2010.

For more information about how to obtain the cumulative update package, click the following article number to view the article in the Microsoft Knowledge Base:
2616519 Cumulative update package 2 for Host Integration Server 2010

Microsoft Host Integration Server 2009

The hotfix that resolves this issue is included in cumulative update package 2 for Host Integration Server 2009.

For more information about how to obtain the cumulative update package, click the following article number to view the article in the Microsoft Knowledge Base:
2645939 Cumulative update package 2 for Host Integration Server 2009

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

Article ID: 2566606 - Last Review: 12/28/2011 20:56:00 - Revision: 1.0

Microsoft Host Integration Server 2010, Microsoft Host Integration Server 2009

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