To create security classes:
From the Shared Services Console, expand Application Groups, right-click the application name, and select Assign Access Control.
Select Add Security Class, or select Actions, and then Add Security Class.
For Name, enter a name for the security class.
The name must be unique and can contain a maximum of 80 characters. It can include spaces, but it cannot start with a space. These characters are not allowed:
Asterisk ( * )
At sign ( @ )
Comma ( , )
Curly brackets ( { } )
Double quotation marks ( “ )
Minus sign ( - )
Number sign ( # )
Period ( . )
Plus sign ( + )
Semicolon ( ; )
Slash mark ( / )