The current PowerShell V3 Beta requires an English Windows operating system. That's bad news for anyone running Windows 7 Professional or Home since you cannot install language packs (MUIs) on those. There is a free tool though that allows you to install MUIs on any Windows 7 version:
http://www.froggie.sk/
You can download MUI packs for different languages for free here:
http://www.mydigitallife.info/windows-7-sp1-mui-language-packs-official-direct-download-links/
