Windows Server 2003 is available in four
editions, and your organization's needs will dictate which one is
most suitable. It's important to clearly understand the differences
in the various versions so you can make an appropriate
Here are a few features that are common to all
- Remote administration and installation using
Remote Desktop Protocol (RDP)
- Network Load Balancing
- A full implementation of IPv6
- Enhanced security using Encrypting File
- The ability to use shadow copies from earlier
- Enhanced management capability using Windows
Management Instrumentation (WMI) from the command line
- Internet Information Services (IIS) 6.0
The Web Edition is a scaled-down version of
WS2K3. It's designed to do nothing but run Web sites, and it
supports the features necessary to fulfill this purpose. Here are a
few of its limitations:
- It supports a maximum of 2 GB of RAM.
- It supports no more than two processors
(two-way Symmetric MultiProcessor (SMP).
- It provides only partial support of Active
Directory. For example, a Web Edition server can't be a domain
The Standard Edition is aimed at environments
that don't need highly available services. Some limitations and
- It supports a maximum of 4 GB of RAM.
- It supports up to four processors (four-way
- Full support of Active Directory.
- Internet Connection Firewall.
- Terminal Services.
- It can act as a VPN server.
- Internet Connection Sharing (ICS).
- Fax services.
- Apple machines can use Macintosh
- Full Group Policy support.
- .NET Framework services.
- ASP.NET services.
- Full implementation of Windows Media
The Enterprise Edition is targeted at
environments with a need for highly available services. This
version includes all of the features from the above editions, and
it introduces the following features and limitations:
- It supports up to 32 GB of RAM (64 GB in
- It supports up to eight processors (eight-way
- Hot addition of RAM.
- Non-Uniform Memory Access (NUMA).
- Full metadirectory support.
- Full set of Public Key Infrastructure (PKI)
- Terminal Services Connection Directory, which
provides high availability capability to Terminal Services.
The Datacenter Edition is aimed at very large
data processing environments. It includes all of the previously
listed features—except the Internet Connection Firewall—and
provides the following:
- It supports up to 64 GB of RAM (512 GB on
- It supports both 32-way and 64-way SMP.