1.3.1 Relationship to the Remote Desktop Protocol: Basic Connectivity and Graphics Remoting Specification

Remote applications integrated locally (RAIL) protocol messages travel over two separate RDP channels:

• Window information orders from server to client are encapsulated in Alternate Secondary Drawing Orders (as specified in [MS-RDPEGDI] section 2.2.2.2.1.3.1.1).

• All other RAIL-specific messages travel over a static virtual channel, called the RAIL virtual channel, that is created by the Remote Desktop Protocol: Basic Connectivity and Graphics Remoting during connection establishment (as specified in [MS-RDPBCGR] sections 1.3.3 and 2.2.1).