The tool takes a "snapshot" of your system. Then you scroll through the pages of information like a book. Its broken down into sections heaps, modules, threads and processes.
The only limitation is it only has the same rights as the user so if you're running as a base level user you're not going to get as much info as a person running as admin. Also you can only obtain information about the modules loaded into the memory of the calling process. This is pretty standard across all cal