| _NewEnum([out, retval] IUnknown **iEnumerator) | IITSourceCollection | |
| Count([out, retval] long *count) | IITSourceCollection | |
| Item([in] long index,[out, retval] IITSource **iSource) | IITSourceCollection | |
| ItemByName([in] BSTR name,[out, retval] IITSource **iSource) | IITSourceCollection | |
| ItemByPersistentID([in] long highID,[in] long lowID,[out, retval] IITSource **iSource) | IITSourceCollection |