The four different versions of Windows .NET server that will be debuting are Windows .NET Web Server, Windows .NET Server, Windows .NET Enterprise Server, and Windows .NET Datacenter Server. They all offer new features that are ideal for setting up a smooth running network. The Windows 2000 family cannot compare to the new .NET family. Windows .NET Web Server is a completely new version never offered by Microsoft before. ("F

Windows .NET Server, Windows .NET Enterprise Server, and Windows .NET Datacenter Server boast thousands of small improvements. These improvements center around heightened security, speed, reliability, and performance. For example, the Windows .NET Server family includes features that make Active Directory deployments faster and more flexible. Two of these features include the Domain Controller Upgrade Wizard that allows an administrator to restore DC information from removable media such as a CD-ROM or a DVD-RAM. ("FAQ", 2002) Also, Active Directory also supports cross forest trust and authentication and authorization. There are now 160 new group policy settings, 28 new command line tools, a new software restriction polices features, and several Terminal Services enhancements. (".NET Family", 2002) Another new feature of the Windows .NET Server family is Internet Information Services 6.0.

An interesting feature to the Windows .NET Server family is informed prefetching. This is the first time that informed prefetching has been used in a commercial operating system. When the operating system boots, the system saves the sequence of page requests that result from having to read all of the code and data needed to get the system running. Once the system has started, the recorded data is read by a user mode service, called the Task Scheduler, which analyzes the data and generates prefetch instructions for subsequent boots. (Wagner, 2002, p.1) The next time the operating system is restarted, concurrently with the initialization of the device drives, the logical prefetcher generates all of the disk I/O requests that are specified by the instructions, bringing all of the data needed into the cache. By the time all of the devices have been initialized, all of the data should be in the cache so that when the actual pages faults are generated by the operating system, they can be quickly serviced from the cache.

The registry in the Windows .NET Server family now has some new features. It is no longer limited in size by the size of the paged pool, and is now constrained only by available disk space. This was done to prevent the registry from using up most of the paged pool, removing the size limitation that was imposed on it, and to accommodate the use of the registry in practice as a database instead of simply a store of configuration information. The performance of queries against the registry should now be faster as well, since an improved allocation

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