41fb3f57__Packs_in_Win_XP_and_Win_Vista__1
[0] . [2] Windows XP usually releases one Service pack per language [3] Being completely built o language neutral code base, Windows Vista can be updated by a single software update anywhere in the world [1] 
Maintenance updates
Creative Tester: Uncovering Myths about Globalization testing- MUI Packs in Win XP and Win Vista
1