[VB6]About some UC events

can anyone explain to me some UC events?
i'm trying build the Create event that there is some problems:(
for i do these event i used the show event(with a boolean variable for do it the 1st time), but if the object is created(but hide) these event doens't work.... how can i resolve the problem?

the Initialize UC event is only for change some variables, why i can't build an event here?

why the terminate UC event is call it, when the object is created?

can anyone explain to me these EC event's: initproperties, accesskeypress, asyncreadcomplete and asyncreadcomplete?
thanks