Description : Multiple developers and users can work on the same C1 site while hosting it on both a central server and local developer machines. In short, this enable developers to run the C1 Server on their local machine in either in IIS or Visual Studio so changes like debugging, compilations and /App_Code changes do not interrupt other people working on the site. You can read about the required setup for multi developer environments here: http://docs.composite.net/C1/FAQ/Developer.aspx?q=How+to+setup+a+C1+multi+developer+environment