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What is Windows Server 2003 R2?

Windows Server 2003 R2 is the next scheduled release of the Windows Server System, Ahead of Windows Longhorn Server. 'R2' stands for 'Release 2'. It includes The Base Windows Server 2003 Install, plus SP1, all Feature Packs to date, and any hotfixes released since SP1.

Release History


Windows Server 2003 Product List
x86: Standard | Enterprise | Web | Datacenter Server | Small Business | Cluster | R2 | Storage

x64: Enterprise | R2

IA-64: Enterprise | Datacenter | R2


Microsoft Operating System Versions
Microsoft Operating System Versions:

MS-DOS: QDOS | 1.0 | 2.0 | 2.1 | 2.11 | 3.0 | 3.1 | 3.2 | 3.21 | 3.3 | 3.3A | 3.31 | 4.0 | 4.01 | 4.01A | 5.0 | 5.0A | 6.0 | 6.2 | 6.21 | 6.22 | 7.0 | 7.1 | 8.0

Windows 1.x: 1.0 | 1.01 | 1.02 | 1.03 | 1.04

Windows 2.x: 2.0 | 2.01 | 2.1 | 2.2

Windows 3.x: 3.0 | 3.0A | 3.1 | 3.11 | 3.2

Windows for Workgroups 3.x: 3.1 | 3.11

Windows 9x: 95 | 98 | ME

Windows NT: 3.1 | 3.5 | 3.51 | 4.0 | 2000 | XP | 2003

Windows NT: Vista | Longhorn Server | Blackcomb Server

Windows NT: Windows 8 | Windows 10 | Windows 11

Windows CE: 1.0 | 1.1 | 2.0 | 2.1 | 2.11 | 2.12 | 3.0 | 4.0 | 4.1 | 4.2 | 5.0

Windows Embedded: NT | XP

Windows Mobile: 2003 | 5.0

Previous Windows Codenames: Janus | Snowball | Kato | Daytona | Chicago | Memphis | Millennium | Cairo | Odyssey | Neptune | Whistler | Longhorn | Blackcomb