I know that AppFabric gives possibility to efficiently track and store workflows.
Anyway, for pure persistence, there is also the SqlWorkflowInstanceStore (which, I guess, is used by AppFabric).
I would like to understand which are the advantages of using AppFabric instead of simple SqlWorkflowInstanceStore and which is the overhead of this choice.
Thanks,
Francesco
If all you are interested in is persistence go with the SqlWorkflowInstanceStore. Windows Server Appfabric adds management and tracking capabilities to that. But Appfabric is a plugin for IIS so only works for workflow services.