Setting up a website is often where control leaves the hands of a developer and enters the hands of a system administrator or an end user. Unfortunately, that handoff doesn't always go smoothly and things may not be configured the same way as the developer expects. With WiX, we can provide an installer that will set up everything in IIS just the way we'd like it to be. It can also ensure that development, QA, and production environments are set up consistently. In this chapter, we'll see how to install application pools, websites, and virtual directories to IIS.