using VS2005, web application projects, web deployment projects

My web installer builds from the output of the web deployment project.  I 
end up with the obj folder in my web site.  How do I use an exclude filter to 
stop this (obj does not work)? Better yet can I have the deployment project 
exclude files not part of the project.  I assume that it is simply working on 
the directory structure.
-- 
kevin...