No there is no way you can stop that. Yes, it is a very bad idea, considering the file being replaced, could be infected. Alot of virus do that, only really works if the user running the setup has no clue that there changing. I just wish there was a way to stop the message windows displays when its trying to put in a new file thats already there and is being used, so the user would not have the trouble on having to click on all the "ignores"