How to Restore removed Languages from WW

Finally i got it!
a 110% working way (tested by many and me) , just follow th step carefully

Step 1:
- Goto Control panel --> Regional and language option --> Tab Advanced
- in the combo box, choose : English (United States) --> Apply
- Restart computer

Step 2:
- Goto Control panel --> Regional and language option --> Tab Languages
- Uncheck the check box "install files for comples script and right-to-left languages (including Thai)" --> Apply
- Restart computer

Step 3:
- Get update WindowsXP-KB897338-v3-x86-ENU.exe from :
http://www.microsoft.com/downloads/details...;displaylang=en and install it.
- Restart computer

Step 4:
- Goto Control panel --> Regional and language option --> Tab Languages
- Check the check box "install files for comples script and right-to-left languages (including Thai)" --> Apply
- Important note : insert CD original WinXp, not Nlited XP CD
- Restart computer

Step 5:
- Goto Control panel --> Regional and language option --> Tab regional options
- In the combo box, choose : Vietnamese
- Goto Control panel --> Regional and language option --> Tab Advanced
- In the combo box, choose : Vietnamese
- Important note : insert CD original WinXp not Nlited XP CD)
- Restart computer

Bingo!