This COM interface is defined by HL7Connect, but not implemented; other other applications implement this interface for use by HL7Connect.Interface to handle any of the events that occur in HL7Connect. The different events may be differentiated either by their class or by their EventName property
Once loaded, the event handler will be kept loaded until all the contexts in which it is used are closed. (i.e. interfaces stopped, and/or kernel shut down).
Event handlers generally need to be thread safe - see discussion on the Start method