USING IIS ON SEPARATE SERVER

How can I run the install to point the website to be loaded on a separate IIS server box. The install is looking on the local server where the APP is being installed. Can Decisions be installed this way or does the App and IIS have to exist on the same server box?

We are trying to break the components into three separate servers - 1) Application Host, 2) IIS host, 3) Database. Is this not recommended? If possible, what do I need to do with the installation process?

Thanks!

Thanks for the follow up. I appreciate the response.