I am using a Config.ini file to do a silent install of SQL 2008R2 Express onto PC's in Russia running Windows in Russian.
It all works OK except the enabling of TCP/IP & Named Pipes. That has to be done manually using SQL Configuration Manager.
I have no issue when installing on to English Windows.
Here is the INI file details. Note I make "Everyone" (\"Bce") an SA for the software we install.
;SQLSERVER2008 Configuration File
[SQLSERVER2008]
INSTANCEID="INSTANCENAME"
IACCEPTSQLSERVERLICENSETERMS="True"
ACTION="Install"
FEATURES=SQLENGINE,REPLICATION,CONN
HELP="False"
INDICATEPROGRESS="True"
QUIET="False"
QUIETSIMPLE="True"
X86="False"
ROLE="AllFeatures_WithDefaults" ...
Go to the complete details ...