Smss.exe Windows Session Manager都做了什么

The Smss.exe process is responsible for:

• Creating LPC port objects and threads for client requests (for example, loading a new subsystem).
• Defining symbolic links for MS-DOS-based devices (for example, COM1 and LPT1). 
• Initializing Terminal Services if it is installed.
• Running any programs that are defined in the HKLM\System\CCS\Control\SessionManager\Bootexecute registry location.
• Performing any delayed file-rename operations or pending file deletions.
• Opening known DLLs.
• Creating additional paging files if any are specified.
• Initializing the registry.
• Creating the system environment variables.
• Loading the Kernel-mode portion of the Win32k subsystem.
• Starting subsystem processes.
• Starting the logon process (Winlogon.exe).
• Creating other LPC ports for debug messages.