Following details in the articles :
http://www.msfn.org/board/c-20127nls-error-sysprep-t37573.html&st=40&gopid=742241
I've added missing files in the sysprep directory %BOOTDRIVE%Sysprep\i386
Exhaustive list of asked files :
Language files : c_20127.nls, c_...nls
Fonts : 8514fix.fon, vga*.fon, …
International agents : agt04407.dll, agt04407.hlp, agt*.dll, agt*.hlp
Keyboard : kbdycl.dll,…
The souce files are stored in :
C:\windows\system32 for NLS files
C:windows\fonts for fonts
C:\windows \msagent\intl for agents dll
C:\windows \help for agents help files
C:\windows\sytem32 for Keybords
Christian