| DevBackgroundWorker | A extended BackgroundWorker component with synchronous (blocking) run/cancellation support, and asynchronous pause/resume features. |
| DevProgressChangedEventArgs | Similarly to ProgressChangedEventArgs, the DevProgressChangedEventArgs class provides data for an event that requires the threathment of decimal progress percentage values. |
| LazyAsyncT | Provides support for asynchronous lazy initialization. |
| DevBackgroundWorkerState | Specifies the state of a DevBackgroundWorker. |