Windows Server 2003

Windows Server 2003, codenamed "Whistler Server", is the sixth major version of the <a href="/facts/Windows_NT/EtccWvxQ">Windows NT</a> <a href="/facts/Operating_system/8XTuvMh2">operating system</a> produced by <a href="/facts/Microsoft/nGIDDXdx">Microsoft</a> and the first server version to be released under the <a href="/facts/Windows_Server/5t7XxyUV">Windows Server</a> brand name. It is part of the <a href="/facts/Windows_NT/EtccWvxQ">Windows NT</a> family of <a href="/facts/Operating_system/8XTuvMh2">operating systems</a> and was released to manufacturing on March 28, 2003 and generally available on April 24, 2003. Windows Server 2003 is the successor to <a href="/facts/Windows_2000/amJIt9gz">the Server editions of Windows 2000</a> and the predecessor to <a href="/facts/Windows_Server_2008/hrcPjTCH">Windows Server 2008</a>. An updated version, Windows Server 2003 R2, was released to manufacturing on December 6, 2005. Windows Server 2003 is based on <a href="/facts/Windows_XP/IozrkAYS">Windows XP</a>.
Its kernel has also been used in <a href="/facts/Windows_XP_editions/ryUtCmRe">Windows XP 64-bit Edition</a> and <a href="/facts/Windows_XP_Professional_x64_Edition/Xsx8RocW">Windows XP Professional x64 Edition</a>.
It is the final version of Windows Server that supports processors without <a href="/facts/ACPI/GnLLzfyr">ACPI</a>.
As of July 2016, 18% of organizations used servers that were running Windows Server 2003.

Windows Server 2003 open-in-new

Windows Server 2003