The NS system module is the first module launched from a NAND title after the core processes sm, fs, [[Process Manager Ports|pm]], loader, and pxi are loaded. This module is launched by the pm process, with the titleID loaded from [[Configuration Memory|NSTID]]. NS first launches [[ErrDisp]], then the menu. On retail the menu TID is loaded from [[Shared_Registers|MENUTID]], while on dev/debug the menu TID is loaded from [[Config Info Blocks|config]]. The TID of the launched menu is then written to [[Configuration Memory|ACTIVEMENUTID]]. NS uses [[PMApp:LaunchTitle|pm:app]] to launch titles.