This software is for evaluation and testing purposes. Evaluating Windows Server 2008 software does not require product activation or entering a product key. Any edition of Windows Server 2008 may be installed without activation and evaluated for an initial 60 days.

If you need more time to evaluate Windows Server 2008, the 60 day evaluation period may be reset (or re-armed) three times, extending the original 60 day evaluation period by up to 180 days for a total possible evaluation time of 240 days. After this time, you will need to uninstall the software or upgrade to a fully-licensed version of Windows Server 2008.

Windows Server 2008 Multilingual User Interface Language Packs

Multilingual User Interface Language Packs (Windows Server Language Packs) enable a multilingual user interface in a Windows Server 2008 environment. Adding one or more language packs to a Windows Server 2008 image enables one or more languages in the installed Windows Server operating system, allowing corporations to deploy the same Windows Server 2008 image worldwide while still providing localized user interfaces.

Download:
Windows Server 2008 v6.0 Build 6001 Standard | 64-Bit
Windows Server 2008 v6.0 Build 6001 Enterprise | 64-Bit
Windows Web Server 2008 v6.0 Build 6001 | 64-Bit
Windows Server 2008 Datacenter v6.0 Build 6001 | 64-Bit

Source: Microsoft