Feature Windows Server 2003 Windows Server 2008
Standard Edition Enterprise Edition Datacenter Edition Web Edition Standard Edition Enterprise Edition Datacenter Edition Web Edition
Hardware Specifications
64-bit Support for Intel® Itanium™-Based Computers1 No Yes Yes No No No No No
Hot add memory2,3 No Yes Yes No No Yes Yes No
Non-Uniform Memory Access (NUMA)3 No Yes Yes No - - - -
Maximum RAM Support 4 GB 64 GB 512 GB 2 GB 32 GB 2 TB 2 TB 32 GB
SMP 4-way 8-way 64-way 2-way 4-way 8-way 64-way 4-way
Hyper-V No No No No Yes Yes Yes No
Directory Services
Active Directory Yes Yes Yes Yes Yes Yes Yes No
Metadirectory Services (MMS) Support No Yes Yes No - - - -
Security Services
Internet Connection Firewall2 Yes Yes No No Yes Yes Yes Yes
Public Key Infrastructure, Certificate Services, and Smart Cards Yes Yes Yes Yes Yes Yes Yes Yes
Terminal Services
Remote Desktop for Administration Yes Yes Yes Yes Yes Yes Yes No
Terminal Server Yes Yes Yes No Yes Yes Yes Yes
Clustering Technologies
Network Load Balancing Yes Yes Yes Yes Yes Yes Yes Yes
Cluster Service No Yes Yes No No Yes Yes No
Communications & Networking Services
Virtual Private Network (VPN) Support Yes Yes Yes Yes Yes Yes Yes Yes
Internet Authentication Service (IAS) Yes Yes Yes No Yes Yes Yes No
Network Bridge2 Yes Yes No No Yes Yes Yes Yes
Internet Connection Sharing (ICS)2 Yes Yes No No Yes Yes Yes Yes
IPv6 Yes Yes Yes Yes Yes Yes Yes Yes
File & Print Services
Distributed File System (DFS) Yes Yes Yes Yes Yes Yes Yes Yes
Encrypting File System (EFS) Yes Yes Yes Yes Yes Yes Yes Yes
Encrypting File System (EFS) Yes Yes Yes Yes Yes Yes Yes Yes
BitLocker Drive Encryption No No No No Yes Yes Yes Yes
Removable Storage Yes Yes Yes Yes No No No No
Remote Storage No Yes Yes No No No No No
Fax Service Yes Yes Yes No Yes Yes Yes Yes
Services for Macintosh Yes Yes Yes No No No No No
Management Services
IntelliMirror Yes Yes Yes Yes Yes Yes Yes Yes
Group Policy Results Yes Yes Yes Yes Yes Yes Yes Yes
Windows Management Instrumentation (WMI) Command Line Yes Yes Yes Yes Yes Yes Yes Yes
Remote Installation Services (RIS)4 Yes Yes Yes No Yes Yes Yes No
Windows System Resource Manager (WSRM) No Yes Yes No Yes Yes Yes Yes
.NET Application Services
.NET Framework2 Yes Yes Yes Yes Yes Yes Yes Yes
Internet Information Services (IIS) 6/7 Yes Yes Yes Yes Yes Yes Yes Yes
ASP.NET2 Yes Yes Yes Yes Yes Yes Yes Yes
Enterprise UDDI Services Yes Yes Yes No Yes Yes Yes Yes
Multimedia Services
Windows Media™ Services2 Yes Yes Yes No Yes Yes Yes Yes
Estimated Software Cost
Estimated CAL Cost

1 Applies to 64-bit versions only.
2 Not supported in 64-bit versions of Windows Server 2003.
3 May be limited by lack of support by OEM hardware.
4 Was renamed to Windows Deployment Services (WDS) in Windows Server 2008.

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