add languages to windows XP vista Windows 7

add languages to windows XP vista Windows 7

http://office.microsoft.com/en-us/downloads/office-language-interface-pack-lip-downloads-HA001113350.aspx

http://windows.microsoft.com/en-GB/windows/downloads/languages

you can install additional languages for Windows XP.
http://windows.microsoft.com/en-US/windows/downloads/windows-xp

TweakUI
Amp up Windows XP with a PowerToy that changes the default user
interface. For advanced computer users only.