Session Manager Subsystem
- Session Manager Subsystem
Session Manager Subsystem, or smss.exe, is a component of the Microsoft Windows NT operating system. It is executed during the startup process of Windows 2000, XP, 2003 and Vista. At this time it:
*Creates environment variables
*Starts the kernel and user modes of the Win32 subsystem (win32k.sys and csrss.exe), and any other subsystems listed in the "Required" value of the HKLMSystemCurrentControlSetControlSession ManagerSubSystems Registry key.
*Creates DOS device mappings (e.g. COM1, LPT and drive letters) listed at the HKLMSystemCurrentControlSetControlSession ManagerDOS Devices registry key.
*Creates virtual memory paging files
*Starts winlogon.exe, the Windows logon manager.
After the boot process is finished, the program resides in memory and can be seen running in the Windows Task Manager.
See also
*List of Microsoft Windows Components
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