1.7 Versioning and Capability Negotiation

Versioning: RAIL is supported in RDP 6.0 and later clients only. The RDP version is negotiated as a part of the Remote Desktop Protocol: Basic Connectivity and Graphics Remoting (as specified in [MS-RDPBCGR] section 1.7). Capability: RAIL-specific capabilities for Remote Programs and Window List are negotiated via the Demand Active and Confirm Active PDUs of the server and client, respectively (as specified in [MS-RDPBCGR] section