3.2.5 Message Processing Events and Sequencing Rules

Except for RopLogon (section, all ROPs listed in the following sections have the client prerequisite of successfully completing a RopLogon operation. RopLogon requires that the client has successfully connected to the server by establishing a Session Context via either the EcDoConnectEx method, as specified in [MS-OXCRPC] section, or the Connect request type,<19> as specified in [MS-OXCMAPIHTTP] section