Microsoft DirectX 9.0

DirectPlay Protocol

Multiplayer games require efficient and flexible network messaging services for optimal performance. The Microsoft?DirectPlay?protocol is a transport-layer messaging protocol that is used for all DirectPlay messaging. It provides your application with the messaging support it needs to make everything run smoothly. The DirectPlay protocol includes the following messaging support.

Note  Before DirectPlay 8.1, the DirectPlay protocol was optional, and had to be specified explicitly. Since DirectPlay 8.1, this protocol is used for all DirectPlay messaging.

This document provides a general description of how the Microsoft DirectX?protocol works, and how you can use it in your application.

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