3.1.5 Processing Events and Sequencing Rules

When a DirectPlay Server/Host is hosting a game session and it receives an EnumQuery message, it SHOULD respond to the address from which the EnumQuery message originated with an EnumResponse message. Note that the DirectPlay Server/Host can choose not to reply to any particular EnumQuery message for application-specific reasons, such as DirectPlay Server/Host load, current game state, or any other reason.