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3.2.5.3 Sending an EcDoAsyncWaitEx Method Call

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The client determines whether the server supports the asynchronous RPC notification method by examining the server version information that is returned from the EcDoConnectEx method call, as described in [MS-OXCRPC] section 3.1.4.1. To determine which minimum server version is required for using the asynchronous RPC notification method, see section 1.7.

If the server supports asynchronous RPC notifications, and the client successfully created asynchronous context handle by calling the EcDoAsyncConnectEx method, as specified in [MS-OXCRPC] section 3.1.4.4, the client SHOULD call the EcDoAsyncWaitEx method, as specified in [MS-OXCRPC] section 3.3.4.1, to determine whether notifications are pending on the server.

For more details about receiving an EcDoAsyncWaitEx method response from the server, see section 3.2.5.5.1.