KBJust a quick heads up on a new SCOM 2007 Knowledge Base article we published this morning. This one talks about how to fix an issue where installing the System Center Operations Manager R2 Authoring Resource Kit on a computer that only has .NET 4.0 on it fails:

Symptoms

When attempting to install the System Center Operations Manager R2 Authoring Resource Kit on a computer that only has .NET 4.0 on it, the setup operation fails before final setup and then uninstalls itself.

 

Cause

This occurs because deprecated security policy API calls used by the Authoring Resource Kit MSI are by default disallowed by .NET 4.0 runtime.

 

Resolution

To work around this issue, locate the machine.config file (\Windows\Microsoft.NET\Framework\v4.0.30319\Config\machine.config) and add a directive as follows:
<configuration>
...
<runtime>
<NetFx40_LegacySecurityPolicy enabled="true"/>

...
</runtime>
Before making this change, copy the machine.config file to a backup copy as follows:
>copy machine.config machine.config.original
>notepad machine.config
Add the <NetFx40_LegacySecurityPolicy> element anywhere in the runtime section of the file. Create a runtime section if none exists. Then save the file. After successfully making this change, the installer for the Authoring Resource Kit should successfully complete.
To revert the change, restore the original version of the file as follows.
NOTE: reverting this change will undo the ability to install the authoring resource kit.
>copy machine.config.original machine.config

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The information above was published today in the following Microsoft Knowledge Base article written by Principal PM Dan Rogers:

KB2518786 - Installation of System Center Operations Manager R2 Authoring Resource Kit fails on .NET 4.0 enabled computers

J.C. Hornbeck | System Center Knowledge Engineer

The App-V Team blog: http://blogs.technet.com/appv/
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The SCMDM Support Team blog: http://blogs.technet.com/mdm/
The ConfigMgr Support Team blog: http://blogs.technet.com/configurationmgr/
The SCOM 2007 Support Team blog: http://blogs.technet.com/operationsmgr/
The SCVMM Team blog: http://blogs.technet.com/scvmm/
The MED-V Team blog: http://blogs.technet.com/medv/
The DPM Team blog: http://blogs.technet.com/dpm/
The OOB Support Team blog: http://blogs.technet.com/oob/
The Opalis Team blog: http://blogs.technet.com/opalis
The Service Manager Team blog: http: http://blogs.technet.com/b/servicemanager
The AVIcode Team blog: http: http://blogs.technet.com/b/avicode
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