Workflow Engine .NET  2
Class List
Here are the classes, structs, unions and interfaces with brief descriptions:
[detail level 123456]
 NOptimaJet
 NWorkflow
 NCore
 NBPMN
 NBuilder
 NBus
 NCache
 NCodeActions
 NDesigner
 NFault
 NGenerator
 NLicense
 NModel
 NParser
 NPersistence
 NRuntime
 NSubprocess
 CDefiningParametersSerializer
 CExtensions
 CHashHelper
 CDesignerExtension which provides API for HTML5 Workflow Designer