Windows Server Releases

Windows Server 2003 WebWindows Server 2003 Web32 bitsLWA-00135
Windows Server 2008 WebWindows Server 2008 Web32/64 bitsLWA-00135
Windows Server 2008 R2 WebWindows Server 2008 R2 Web64 bitsLWA-00135
Windows Server 2003 StandardWindows Server 2003 Standard32/64 bitsP73-04948
Windows Server 2003 R2 StandardWindows Server 2003 R2 Standard32/64 bitsP73-04948
Windows Server 2008 StandardWindows Server 2008 Standard32/64 bitsP73-04948
Windows Server 2008 R2 StandardWindows Server 2008 R2 Standard64 bitsP73-04948
Windows Server 2003 EnterpriseWindows Server 2003 Enterprise32/64 bitsP72-04186
Windows Server 2003 R2 EnterpriseWindows Server 2003 R2 Enterprise32/64 bitsP72-04186
Windows Server 2008 EnterpriseWindows Server 2008 Enterprise32/64 bitsP72-04186
Windows Server 2008 R2 EnterpriseWindows Server 2008 R2 Enterprise64 bitsP72-04186

Memory Limits for Windows Releases

Comparison of Windows Server 2008 Editions (english)

Comparison of Windows Server 2008 Editions (spanish)

Comparison of Windows Server 2003 Editions (english)

Comparison of Windows Server 2003 Editions (spanish)