title: Running multiple virtual directories on IIS - any performance issues?
body: <p>I need to run 8-10 instances of my application on IIS 6.0 that are all identical but point to different backends (handled via config files, which would be different for each virtual directory).  I want to create multiple virtual directories that point to different versions of the app and I want to know if there is any significant performance penalty for this.  The server (Windows Server 2003) is a quad-core with 4 GB of ram and the single install of the app barely touches the CPU or memory, so it doesn't seem to be a concern.  This doesn't seem to justify another server, especially since some of the instances will be very lightly used.  Obviously, performance depends on the server and the application, but are there any concerns with this situation?</p>