Installation et configuration de l'agent > Before Installing Agent Windchill RV&S > Assumptions
  
Assumptions
Before using the Agent Windchill RV&S, ensure that you understand:
The hardware platforms and operating systems you are installing the Agent Windchill RV&S on, that is, Windows and Linux.
The native security realm of your system. The Agent Windchill RV&S supports the following security realms: Windows (ADS/Kerberos), UNIX, Lightweight Directory Access Protocol (LDAP), and Flat File.
Distinguished Names (DN), LDAP search filters, and LDAP schemas if you want to use LDAP or Windows authentication using ADS.
The character set encoding requirements of your e-mail system.