Microsoft has begun beta testing of the Windows 7 and Windows Server 2008 Service Pack 1 release.
The company is accepting registration requests from advanced users wishing to try the software, which contains cumulative security updates and several new features.
Chief among these is RemoteFX, a virtualisation tool that allows administrators to deliver improved 3D graphics on virtualised desktop systems and remote worker devices, and a server memory management tool named Dynamic Memory.
However, Microsoft has warned that the service pack is not yet ready for many users. The beta release will not be offered to home systems and will contain no new components for end-user systems. The company said that the release is not supported.
The packs follow an update to Microsoft's Azure offering which targets server-based cloud computing deployments.
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