| ASCOMDevice | Base class for COM DriverAccess devices |
| AxisRates | A collection of rates at which the telescope may be moved about the specified axis by the MoveAxis(TelescopeAxis, Double) method. This is only used if the telescope interface version is 2 or 3 |
| Camera | Camera device class |
| CoverCalibrator | CoverCalibrator device class |
| Dome | Dome device class |
| DynamicAccess | Dynamically manipulate a COM object's members |
| FilterWheel | FilterWheel device class |
| Focuser | Focuser device class |
| ObservingConditions | ObservingConditions device class |
| Rotator | Rotator device class |
| SafetyMonitor | SafetyMonitor device class |
| Switch | Switch device class |
| Telescope | Telescope device class |
| TrackingRates | Returns a collection of supported DriveRate values that describe the permissible values of the TrackingRate property for this telescope type. |
| Video | Video device class |