The Windows 7 and Windows Server 2008 R2 SP1 RTM has been finalized and signed off by Microsoft. With each new major version revision of Windows Server 2008 R2, the MUI (Multilingual User Interface) language packs has to be updated too. MUI language packs (Windows Server Language Packs) enable a multilingual user interface in a Windows Server 2008 R2 environment.

Language packs are normally available for download via Windows Update. Microsoft does release standalone update packages in .cab cabinet files format in the form of DVD ISO image, typically to volume licensing customers, MSDN or TechNet subscribers and OEM partners, which can be used for offline installation or slipstream into ISO image. Adding one or more language packs to a Windows Server 2008 R2 image enables one or more languages in the installed Windows Server operating system, allowing corporations to deploy the same Windows Server 2008 R2 image worldwide while still providing localized user interfaces.

As Windows Server 2008 R2 SP1 is not officially launched yet, the language packs for Windows Server 2008 R2 SP1 is not yet available in Windows Update. But the Windows Server 2008 R2 SP1 MUI language packs have also been leaked, and available for free download via BitTorrent (BT) network and various file hosting services.

Windows Server 2008 R2 SP1 64-bit (x64) MUI Language Packs

File Name: FILE : 7601.17514.101119-1850_x64fre_server_langpacks_1-GRMSXLP1_DVD.iso
Build: 7601.17514.101119-1850
Size: 2,935,293,952 byte
SHA-1: 79A25EDAAE853E1C78E7AB984D40ACFF0E53BD19
MD5: F6A8668E096E89F18BAEBB71BE1AD24B
CRC: 270682F8

Torrent: MICROSOFT.WINDOWS.SERVER.2008.R2.LANGUAGE.PACK-1.WITH.SP1.ALL.LANGUAGES.RTM.X64.DVD-WZT.torrent

File Name: 7601.17514.101119-1850_x64fre_Server_LangPacks_2-GRMSXLP2_DVD.iso
Build: 7601.17514.101119-1850
Size: 90,267,648 byte
SHA-1: A7CD937709CADFFAEDC9C4251E62DE4CCC241F9E
MD5: D418419B87114FD948BC6CF45A370F5A
CRC: 9366DDC5
Note: Contains only Traditional Chinese (zh-tw)

Torrent: MICROSOFT.WINDOWS.SERVER.2008.R2.LANGUAGE.PACK-2.WITH.SP1.CHINESE-TAIWAN.RTM.X64.DVD-WZT.torrent

The ISO image file contains language packs in the file name and format of lp.cab Cabinet file. To install a language pack Cabinet file, follow the guide on how to manually install language pack, and guide to change and translate display language on user interface and welcome screen.

Update: Official Windows Server 2008 R2 MUI Language Packs