One more AddProperty gotcha - it doesnt work with COM objects. If you add a property to a COM object it will exist internal to the object but will not be accessible over the COM layer. I was all gung-ho about using AddProperty to do some interesting stuff until I found this out...

>>>>No question. The lack of these function always drove me nuts. They both just seemed so obvious.
>>>Josh and John,
>>>
>>>Just be careful that AddProperty is not hidng a poor design on you.
>>
>>Jim,
>>
>>That's a good point. I'd hate to see people using it to tack additional properties to instantiated objects instead of subclassing or modifying the existing hierarchy. I can imagine trying to debug an application and finding references to properties that aren't in the class definition all over the place.
>
>It brings another nuisance - along with "where in the code does this get initialized", we are getting additional "where in the code does this property get invented".
>
>IMO, the .AddProperty should be used sparingly.