Gets or sets a value that indicates whether a new service instance can be created if an activation message is received on this operation. The dispatcher considers messages without an attached instance ID to be activation messages.
Assembly: System.WorkflowServices (in System.WorkflowServices.dll)
If your contract disallows sessions, then must be set to true for all operations.
If the contract permits or allows sessions, then all operations for which is set to true must be request/response operations: that is, IsOneWay cannot be set to true.
Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2