| Data Member | Description |
| m_csObjMap | Ensures synchronized access to the object map information |
| m_csTypeInfoHolder | Ensures synchronized access to the type library information |
| m_csWindowCreate | Ensures synchronized access to window class information. |
| m_hHeap | Contains the handle to the heap managed by the module |
| m_hInst | Contains the handle to the module instance |
| m_hInstResource | By default, contains the handle to the module instance |
| m_hInstTypeLib | By default, contains the handle to the module instance |
| m_nLockCnt | Contains the current lock count on the module |
| m_pObjectMap | Points to the object map maintained by the module instance |