>>>I was passing in an object, oHandler, to another object, oxServer, but decided I want to create oHandler inside oxServer instead, to keep everything encapsulated so references are easier to make. What decides when to use NewObject, CreateObject or AddObject? I was using CreateObject for oHandler, then passing it in, but what's the correct way to do it inside oxServer? Why?
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>>You use Newobject() and AddObject() methods to add objects (controls) to a container. An example would be adding label, button, etc. to a form during runtime.
>>The Newobject() and CreateObject() functions used to create object that do not belong to container but rather are refereced by it.
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>So, NewObject can be used in either case. AddObject is only used with a container. CreateObject would be used in a non-visual, non-container class. I can use either NewObject or CreateObject in my case then. Why even have CreateObject if NewObject can do the same thing?

There is a long discussion going on on CreateObject vs. NewObject right now, started by Dragan N. You may want to read it.