A file system interface is simulated out of at least a portion of a dormant computer system. File-based discovery is performed on the simulated file system interface to obtain a detailed inventory of at least the portion of the dormant computer system. The detailed inventory includes one or more of software profiles of at least the portion of the dormant computer system, software instances of at least the portion of the dormant computer system, services of at least the portion of the dormant computer system, and data objects used by the services.