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Here’s some interesting sessions for virtualization from TechEd.

Networking and Windows Server 2008 R2 Hyper-V: Deployment Considerations

Microsoft System Center Virtual Machine Manager 2008 R2: Advanced Virtualization Management

The Microsoft System Center Operations Manager Top 20 Must-Have Customizations

Microsoft System Center Operations Manager and Virtual Machine Manager: Monitoring the Service Stack

See the Largest Mission Critical Deployment of Microsoft SQL Server around the World

Check the Latest Videos from TechEd North America

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CRITICAL UPDATE for Exchange 2010 Address List Segregation and Current Support Stances, read the Full article From Dgoldman’s WebLog

According with KB980050, When you try to set up Microsoft Exchange Server 2010 on a Hyper-V Virtual Machine, the setup process may fail. Additionally, you receive the following error message:

“An error occurred with error code ‘2147504141′ and message ‘The property cannot be found in the cache.’“

To resolve this problem, disable time synchronization in the Hyper-V Manager console. To do this, follow these steps:

1-Open the Hyper-V Manager console.
2-Locate and Right-click the virtual machine on which you want to install Exchange Server 2010, and then click Settings.
3-Click the Management section in the Settings tab, and then click Integration Services.
4-Click to clear the Time synchronization check box, and then click OK.
5-Install Exchange Server 2010 on the virtual machine.