Windows Server 2008 R2 Beta(x64) CD-ROM image Download
At the same time that Microsoft made the Windows 7 Beta CD image download available to paying subscribers through the MSDN website, it also launched another "Big MAC" on MSDN: Windows Server 2008 R2 Datacenter, Enterprise, and Standard Beta (x64) - DVD (English). This is Microsoft's first Only 64-bit server operating system, which marks Microsoft's enterprise products are about to bid farewell to the 32-bit era.