>For creating I still use (successfully):
>declare integer SQLConfigDataSource in odbccp32.dll integer, integer, string, string
>return SQLConfigDataSource(0,1,lcOdbcDriver,lcOdbcSettings)>0
>but it doesn´t work on XP.
>What have I change ?
>Pavel

Do you have sufficient rights to run it? What error SQLInstallerError returns? http://msdn.microsoft.com/library/default.asp?url=/library/en-us/odbc/htm/odbcsqlconfigdatasource.asp.
You can also try ODBC DSN Class file #9749.