Microsoft has released Language Packs for SP 2010. Thank you. Now I can try to upgrade existing Installations :-)

But wait. The Languages Packs won’t install on my Windows 7. It says they need a Windows Server 2008 x64. Right. But it’s the same with the Server itself. We have to modify the config file, to support an installation on a non Server OS.

Setting Up the Development Environment for SharePoint Server: http://msdn.microsoft.com/en-us/library/ee554869%28office.14%29.aspx

1. Extract the Language Pack with “SharePointLanguagePack.exe /extract:C:\ExtractedLanguagePack”
2. Modify the config.xml file in Files\Setup folder
3. Add “<Setting Id="AllowWindowsClientInstall" Value="True"/>”
4. Install the Language Pack
1. SharePoint Foundation
2. SharePoint Server
3. Run Configuration Wizard