This looks like it may be a dll that you shouldn't be distributing. From the name, I am assuming it is part of the Microsoft Foundation Classes. I would dig into why it is part of your setup. I would expect it is part of your setup due to a referenced component.
You many want to have your setup program not distribute the referenced component, and have the setup "process" include installing the referenced component on it's own, then running your setup package.
John R Lick