Microsoft Windows Server 2008 R2 will be the next version of the Windows Server operating system from Microsoft. Building on the features and capabilities of the current Windows Server 2008 release version, Windows Server 2008 R2 allows you to create solutions organization that are easier to plan, deploy, and manage than previous versions of Windows Server.
Developing upon the increased security, reliability, and performance provided by Windows Server 2008, Windows Server 2008 R2 extends connectivity and control to local and remote resources. This means your organizations can benefit from reduced costs and increased efficiencies gained through enhanced management and control over resources across the enterprise.
With this keys,you can use it till 1. August 2009.
Standard：2T88R-MBH2C-M7V97-9HVDW-VXTGF
Enterprise：TFGPQ-J9267-T3R9G-99P7B-HXG47
Data Center：GQJJW-4RPC9-VGW22-6VTKV-7MCC6
Web：GT8BY-FRKHB-7PB8W-GQ7YF-3DXJ6
Itanium-Based ：CQ936-9K2T8-6GPRX-3JR9T-JF4CJ
Windows Server 2008 R2 Beta Download:
Official Download Page：http://www.microsoft.com/downloads/details.aspx?familyid=85cfe4c9-34de-477c-b5ca-75edae3d57c5&displaylang=en&tm#filelistx
Direct Download Link：
Standard/Enterprise/Datacenter(2850.0MB)：
http://download.microsoft.com/download/0/E/7/0E76E1CE-BFB2-475B-B14C-3445E6C27B4E/7000.0.081212-1400_server_en-us-GB1SXFRE_EN_DVD.iso
Web(2724.3MB)：
http://download.microsoft.com/download/0/E/7/0E76E1CE-BFB2-475B-B14C-3445E6C27B4E/7000.0.081212-1400_serverweb_en-us-GB1WXFRE_EN_DVD.iso
Itanium-Based (2512.2MB)：
http://download.microsoft.com/download/0/E/7/0E76E1CE-BFB2-475B-B14C-3445E6C27B4E/7000.0.081212-1400_serverenterpriseia64_en-us-GB1SIAIFRE_EN_DVD.iso
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