RPC HELP Hosts File
From VistApedia
HOSTS FILE
The HOSTS files is an ASCII text file that contains a list of the servers and ther Internet Protocol (IP) addresses. We recommend you put in an entry (i.e. "DHCPSERVER") that points to the main server you intend using with the Broker the majority of the time. In your applications you will be able to specify any server you wish, however, if the Server property = " (i.e., nul), you will get an error.