You told that you want to avoid overwriting, then why you did pass true for the last parameter?

Have you tried passing false?

FileSystem.CopyFile(destination1, destination2, false);


As side note, remember that the system will never compare two files in order to know if they are identical and then skip the copy.
If you want to accomplish this behavior, then you have to implement it by yourself, but it would usually be heavier than simply overwriting, due to the need to fully read the destination file, unless you implement some caching mechanism or the destination file is already (and still) in system cache.

Regards,
Daniele.

Skip duplicated files on copy
Is there a general word for someone or something popular or loved by the masses but that has not been proven to be effectual (like how some would use the term "pop psychology" pejoratively)? Examples would be how things like popular psychology or holistic medicine are accepted excitedly by numerous people while not being proven to be useful to the majority.

UPDATE: Thanks for you responses. I think the word "fad" (or "hype") would come closest to what I was looking for (thank you for that).

But is there a more general or appropriate term? I'm not American so apologies in advance (this is strictly for the sake of discussion): the only example I can think of is certain voters who were initially excited about Obama, but came to be disappointed after he failed to meet their expectations. Is there a word that could be used to describe Obama in this context? Something well-loved which turns out to be a disappointment.
