Windows Server 2008 R2 includes improvements to Server Core, IIS 7.5, Remote Desktop Services, and scalability. It enables better integration with Windows 7 through new features like DirectAccess and BranchCache that improve connectivity and productivity for mobile workers. Remote Desktop Services sees enhancements to presentation virtualization and support for virtual desktop infrastructure. IIS administration is simplified through integrated Windows PowerShell modules. Server scalability is increased through support for more than 64 processor cores and reduced thread locking.