i am beginig using of mod_auth_sspi of apache after which download from copy to my installing of apache's module folder and my added text to httpd.conf file is:

<IfModule !mod_auth_sspi.c>
LoadModule sspi_auth_module modules/
# Configuration for mod_auth_sspi 
<IfModule mod_auth_sspi.c> 
<Directory "C:\xampp\htdocs\j\administrator">
 Options None  Order allow,deny
Allow from all 
AuthType SSPI  
SSPIAuth On 
SSPIDomain localhost
SSPIAuthoritative on  
SSPIOfferBasic Off 
SSPIPerRequestAuth On
SSPIOmitDomain ON 
require valid-user 


i'm not sure which i want send request to joomla administration folder from IE and Opera try not to appear winodows credential login box... i very grateful from somone that provide assist me to?