Specifying the language for the Oracle server’s locale
You should define a culture for the Oracle server. Use the NLS_LANG environment variable. If NLS_LANG is not defined, then the server’s locale is used by
			default. 
To avoid issues in Optiva, the
			culture for the NLS_LANG environment
			variable must be compatible with the culture in the Web.config file. (This file is in the FsSvcCore directory.) 
For example, NLS_LANG=AMERICAN_AMERICA.UTF8 is compatible with
			the Globalization setting of EN-US in the Web.config file. 
The specific character set (e.g., UTF8
			versus WE8MSWIN1252) does not matter. The first part
			must match. For example, AMERICAN_AMERICA for the NLS_LANG environment variable and EN-US for the Web.config file. 
For any US language, the recommended value is: NLS_LANG=AMERICAN_AMERICA.UTF8.