You can run Internet Information Services (IIS) 6.0 in one of two modes: worker process isolation mode or IIS 5.0 isolation mode. Worker process isolation mode is the default mode the Web server runs in after a clean installation of the Microsoft® Windows® Server 2003 operating system. IIS 5.0 isolation mode is the default mode when you upgrade to IIS 6.0 from a previous version of IIS. Administrators should only run IIS in IIS 5.0 isolation mode when applications on the server are determined to be incompatible with worker process isolation mode.
Credentials: Membership in the Administrators group on the local computer.
As a security best practice, log on to your computer ...