64-bit processor support - Allows OS to take advan-tage of the latest 64-bit hardware to increase scale up.

Active Directory®: Domain Rename – This feature sup-ports changing the Domain Name System (DNS)and/or NetBIOS names of existing domains in a forestsuch that the resulting forest is still “well formed.”

Automated System Recovery – A new feature inWindows Server 2003, Automated System Recovery(ASR) improves productivity by enabling a one-steprestore of operating system, system state, and hard-ware configuration in disaster recovery situations.

Geo-cluster support – This provides increased flexibili-ty of adding and removing hardware in a geographicallydispersed cluster environment as well as providingimproved scaling options for applications.

Headless Server – Allows operation of a server withouta monitor, keyboard or mouse.

Hot add RAM – Hot Add Memory allows ranges ofmemory to be added to a computer and be made avail-able to the Operating System and applications as partof the normal memory pool. This will not require re-booting the computer and involves no downtime.

Hot plug PCI – This feature will support OEMs whoimplement Hot Plug via Advanced Configuration &Power Interface (ACPI) 1.0b mechanisms.

Memory Mirroring – Memory mirroring provides theability to take snapshots of independent memory sub-systems in a Fault Tolerant set of computer systemsso they can have the same replicated memory.

Microsoft Software Update Services (MSUS) – MSUSis a staging mechanism so that critical OS updates canbe hosted on internal network servers for staging pur-poses rather than having each server contactMicrosoft over the internet.

NUMA Support – Support Non-Uniform MemoryAccess (NUMA) in multi-processor systems providesgreater performance and scalability.

Print cluster support – A new feature in WindowsServer 2003, Print Cluster support improves productivi-ty by making it easier to install print drivers on serverclusters. When installing a printer driver on a virtualcluster, Windows Server 2003 automatically propa-gates the driver to all nodes of the cluster.

SAN-aware clustering – This feature allows all serverstorage to be centralized into a SAN including boot,pagefile and system disks using a single or multipleredundant HBAs.

Volume Shadowcopy Service (VSS) – A VolumeShadow Copy of a storage volume is a point-in-timecopy of the original entity. The Volume Shadow Copy istypically used by a backup application so that it canbackup files that are made to appear static, eventhough they are really changing.

IIS locked by default – IIS ships in a default lockedstate; easy to use tools are provided to help Webadmins enable required services.

8-node Server Clustering – Allows up to 8 servers towork together to run a common set of applications andprovide the image of a single system to the client andapplication.

Greater system scalability

Admins have greater flexibility inchanging Active Directory struc-ture after it is deployed. Designdecisions are now reversible

Makes rebuilding a server mucheasier since no actual softwarehas to be reloaded. This makesthe process much faster

Admins can deploy clusters thatare geographically dispersed

Allows server farms and bladesto be deployed more easily

With the hot add memory fea-ture, service performance canbe increased without serviceinterruption

An IT administrator will be ableto utilize Hot Plug PCI to replace,add, and remove devices with-out scheduling downtime

Reduces System Downtime dueto Hardware (Memory) failures

Test and insure that new patch-es don’t adversely effect sys-tems; patch more frequently,avoiding potential problems

Better performance and scala-bility

Simplifies print configuration forclusters making administrationeasier

Allows admins to leverage SANsand integrate clusters

Allows much easier data man-agement, especially for open filebackups

Makes the system more secure;lowers the probability of attack;uptime

Makes systems more highlyavailable, scalable andmanageable

Allows consolidation ofservers, saving costs

Organizational flexibility

Downtime reduced

Protects information withdisaster recovery scenario

Lower capital equipment costs

Lower downtime,reduced costs

Lower downtime,reduced costs

Lower downtime,reduced costs

Cost savings

Existing servers can do morework, or the same work canbe done by fewer servers,leading to lower costs

Better use of IT resources

Leverages existinginvestments

Cost savings due to betterdata management

Cost savings

Potential cost savings due todowntime avoidance

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2003 Server

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Active Directory Migration Tool (ADMT) v2.0 – It isnow easier to migrate to Active Directory through anumber of improvements that have been made to theActive Directory Migration Tool (ADMT). ADMT version 2now allows migrating passwords from Windows NT® 4to Windows 2000 and Windows Server 2003 Family orfrom Windows 2000 and Windows Server 2003 Familyto Windows 2000 and Windows Server 2003 Familydomains.

ASP (2003) – ASP (2003) is the foundation forcreating rich and dynamic Web sites using server-sidescripting.

Dynamic Volume Management – Add new volumes,extend existing volumes, break or add a mirror, orrepair a RAID 5 array, while the server is online, with-out impacting the end-user.

File performance – from 100-139% faster file servicesover Window 2000.

Group Policy Management Console (GPMC) – GroupPolicy provides a policy based mechanism for manag-ing server, desktop, and user settings. In WindowsServer 2003, you use Group Policy to define configura-tions for groups of users and computers. The newGroup Policy Management Console (GPMC) makes thiseasier to do.

Increased Memory Support – Support for up to 512GB memory on 64-bit systems, and 64 GB memory on32-bit systems.

Native LDAP support – Support for internet standardallows Active Directory to act as a native LDAP v3directory service.

Network Load Balancing – Balances incomingInternet Protocol (IP) traffic across nodes in a NetworkLoad Balancing cluster.

Performance Monitoring Tools – Provide the ability tomonitor performance of: 1) Disk Input/Output, 2)Memory management, 3) Image load/unload, 4)Process/thread activities (for example, process/threadcreate, context switching), 5) Registry, 6) Drivers, 7)Pool allocations, 8) Heap allocations, 9) CPU.

Remote Imaging Services (RIS) – Provides the abilityto remotely install authorized and/or customizedimages of the operating system on new or ‘scrubbed’hardware.

Smart Cards – Automatic smart card enrollment andself-registration authority features provide enhancedsecurity for enterprise users by adding another layer ofauthentication; this is in addition to simplified securityprocesses for security-conscious organizations.

Terminal Services – Run Windows-based applicationson the server, and access from a remote PC, Windows-based Terminal or non-Windows device, over LANs,WANs or low-bandwidth connections, through terminalemulation software.

Windows Media® Services – Comprehensive stream-ing media distribution platform.

Migrations made easier

ASP.NET includes advancedcompilation and cachingfeatures that improve perform-ance by a factor of two tothree over existing ActiveServer Pages (ASP)applications

Makes managing disk easier

Users get faster file accessmaking them more productiveand less likely to seekassistance

Admins can now more easilycreate, test and deploy grouppolicy. Tracking how policieswork and report generationare also new. Overall the newconsole saves time and effort

Better performance andscalability

Assists with connectivity in aheterogeneous environment

Eliminates single point of fail-ure, increases scalability andis seamless for users

Improves ability to monitorsystems for problematicconditions and take proactivecorrective action

Reduced deployment time

Makes network moresecure by using 2 factorauthentication

Allows for better use of band-width and re-use of olderhardware

Makes it easy to setup andmanage a streaming mediaserver

Migrations have lowernegative impact to users,saving time

Faster time to market withapplications

Cost saving

User productivity enhanced

Better use of IT resources

Existing servers can do morework, or the same work canbe done by fewer servers,leading to lower costs

Does not require a 3rd partyor custom solution for thisconnectivity

Makes Web resources moreavailable and scalable toboth internal and externalcustomers

Reduces problem incidentsand system down-time

Better use of IT resources

Greater asset protection

Lowers hardware costs

Allows for new types ofcommunication and collabora-tion using rich media;potential travel and trainingcost savings

© 2003 Microsoft Corporation. All rights reserved. Microsoft, Active Directory, Windows, the Windows logo, Windows Media, and Windows NT areeither registered trademarks or trademarks of Microsoft Corporation in the United States and/or other counties.

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2003 Server

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Microsoft® Windows® Server 2003Comparison to Windows 2000 Server