| Array | A list based Array |
| CallEndpoint | An abstract call endpoint |
| CallInfo | |
| CallList | |
| ChanAssist | |
| ChanAssistList | |
| Channel | An abstract communication channel |
| Client | Thread that runs the User Interface |
| ClientChannel | Channel used by client programs |
| ClientDriver | Base Driver with client specific functions |
| Configuration | Configuration file handling |
| DataBlock | A class that holds just a block of raw data |
| DataConsumer | |
| DataEndpoint | A data transfer endpoint capable of sending and/or receiving data |
| DataFormat | A Data format |
| DataNode | |
| DataSource | |
| DataTranslator | An unidirectional data translator (codec) |
| DebugEnabler | A holder for a debug level |
| Debugger | An object that logs messages on creation and destruction |
| Driver | A Channel driver module |
| Engine | Engine globals |
| File | A stream file class |
| FormatInfo | |
| FormatRepository | A repository for media formats |
| GenObject | |
| GenPointer | Templated pointer that can be inserted in a list |
| HashList | A hashed object list class |
| ImageInfo | |
| ListIterator | Class used to iterate the items of a list |
| Lock | Ephemeral mutex locking object |
| Lock2 | Ephemeral double mutex locking object |
| MD5 | A standard MD5 digest calculator |
| Message | A message container class |
| MessageDispatcher | A message dispatching hub |
| MessageHandler | A message handler |
| MessageNotifier | Post-dispatching message hook |
| MessagePostHook | Post-dispatching message hook that can be added to a list |
| MessageReceiver | A multiple message receiver |
| MessageRelay | A message handler relay |
| Module | A Plugin that implements a module |
| Mutex | Mutex support |
| NamedList | A named string container class |
| NamedString | A named string class |
| ObjList | An object list class |
| Plugin | Plugin support |
| RefObject | |
| RefPointer | Templated smart pointer class |
| RefPointerBase | Internal helper class |
| Regexp | A regexp matching class |
| Router | Call routing thread |
| Runnable | Encapsulates a runnable task |
| Socket | A generic socket class |
| SocketAddr | A socket address holder |
| Stream | An abstract stream class capable of reading and writing |
| String | A C-style string handling class |
| SysUsage | A class exposing system resources usage |
| Thread | Thread support class |
| ThreadedSource | |
| Time | A time holding class |
| TokenDict | |
| TranslatorCaps | |
| TranslatorFactory | An unidirectional data translator (codec) |
| UIFactory | A static user interface creator |
| URI | Encapsulation for an URI |
| Window | An abstract user interface window |
1.4.4