3.3.5.2.2 Processing a Channel Created Message
The structure and fields of the CHANNEL_CREATED message are specified in section 2.2.5.1.
After receiving the CHANNEL_CREATED message, the client validates the server USB redirection version. If the client does not support the server's USB redirection version, the client MUST close the dynamic virtual channel. If the client supports the server's USB redirection version, it MUST begin sending Device Sink interface messages.