Microsoft is optimizing Windows 7 in order to increase performance, and, in this context, the dispatcher lock is one of the components that has got cut off . Fewer hardware locks are synonymous with boosted parallelism, namely a new level of efficiency when it comes down to taking advantage of modern processing architectures. This is valid for Windows Server 2008 R2, namely Windows 7 Server, and, naturally, also for the Windows 7 client, since the two operating systems share the same code base.

The main benefits for applications include increased system performance and more optimal use of available hardware resources,  revealed Phil Pennington.

Source:→ Softpedia