title: Exclude files from web site deployment with msbuild
body: <p>I have a web site project that I deploy using msbuild. In the project there are some files and folders that are needed for the build (e.g. the web.config part replacement files) but that I don't want to deploy to the target site.</p>
  
  <p>The best I could think of is a post-build target that removes these files, but I'd like to know if there is a way to have these files not copied to the output folder.</p>