How to load DLLs into specific folder after publish

I have a simple Asp.Net web app, While we right click on project and publish it. and check in project location we will found that a folder with the name bin gets created with some ddls into it. Instead of bin, i want to load into my customized folder called mydllfolder. and i want mydllfolder in place of bin folder. I can load those dlls into my after after building project(Just by changing the name of the folder in Output Path option). But i want that folder to be appear in place of bin folder(when we open project location) after publishing. Hope its clear from my side.