Hi, I've Upgraded my OTRS to 2.4.7 version but when a try to call my customer users login page I obtain this error message: Software error: Can't locate Authen/Radius.pm in @INC (@INC contains: ../../ C:/Program Files/OTRS/OTRS/bin/cgi-bin/../../Kernel/cpan-lib C:/Program Files/OTRS/OTRS/bin/cgi-bin/../.. C:/PROGRA~1/OTRS/StrawberryPerl/perl/lib C:/PROGRA~1/OTRS/StrawberryPerl/perl/site/lib . C:/Program Files/OTRS/OTRS/bin/cgi-bin/../.. C:/Program Files/OTRS/OTRS/bin/cgi-bin/../../Kernel/cpan-lib) at ../..//Kernel/System/CustomerAuth/Radius.pm line 18. BEGIN failed--compilation aborted at ../..//Kernel/System/CustomerAuth/Radius.pm line 18. For help, please send mail to the webmaster ( mailto:webmaster@somenet.com webmaster@somenet.com), giving this error message and the time and date of the error. In C:\Program Files\OTRS\OTRS\Kernel\System\CustomerAuth\Radius.pm I've added: use lib 'C:\Perl\site\lib\Authen'; but it doesn't work. With the previous version (2.3.4) it worked Help me, please. Thanks, Alessandro