Windows 7 Server was been demonstrated by Microsoft at their Virtualization Launch on 8 Sep 2008. Windows 7 Server is the code name for Windows Server 2008 R2. Windows 7 Server and Windows 7 Client in parallel being developed by Software Company are based on the same core. As it is known that Windows 7 is the evolution of Windows Vista so is the Window 7 Server the next generation of Windows Server 2008 R2. The fact remains that the Windows 7 Client is a major version of Windows Vista while Windows 7 Server is a minor update of the latest operating system Windows Server 2008 R2. Windows 7 Client will be delivered in both 32-bit and 64-bit and there is likelihood of a few new features also in this server.