是关闭.exe有必要关闭窗户吗？

是关闭.exe在关闭Windows时是必要的，还是只是用来关闭Windows的一部分？是否使用了其他文件和/或进程？今天的超级用户问答帖子回答了一位好奇的读者的问题。...

是关闭.exe有必要关闭窗户吗？

是关闭.exe在关闭Windows时是必要的，还是只是用来关闭Windows的一部分？是否使用了其他文件和/或进程？今天的超级用户问答帖子回答了一位好奇的读者的问题。

今天的问答环节是由SuperUser提供的，SuperUser是Stack Exchange的一个分支，是一个由社区驱动的问答网站分组。

问题

超级用户读者Mukul Kumar想知道关闭.exe是关闭Windows所必需的：

Is the file C:\Windows\System32\shutdown.exe necessary to shut down or restart Windows?

是关闭.exe是否需要关闭或重新启动Windows？

答案

超级用户贡献者JdeBP为我们提供了答案：

Your question of course originates from your answer at StackExchange, in particular from kinokijuf’s comment upon the initial revision of your answer.

As kinokijuf said, Windows is not Unix. On Unices and Linux, shutdown is indeed involved in the full shut down process. It is the program that sends regular warning messages to logged-in users and that writes the /run/nologin file to prevent further logging-on a short while before the scheduled shut down time.

On Windows NT, this is not the case.

The “shut down” action on the “power button” on the Windows Explorer Start menu, the “shut down” menu option in Task Manager, REBOOT /S in TCC or Take Command, and other application programs that allow you to shut the system down all initiate shut down by directly calling one of two Win32 API calls: InitiateSystemShutdownEx() or ExitWindowsEx(). They do not do things indirectly by running the shut down program. That actually needs more code to do than just calling the Win32 API call. The shut down program, when one is doing a local shut down, calls those same Win32 API calls too.

It is actually winlogon, csrss, and **ss that are the programs that shut down Windows NT. In particular, it is winlogon that does the main work of processing deferred shut down requests.

Further Reading

Jonathan de Boyne Pollard (2006). The Windows NT 6 shutdown process. Frequently Given Answers.
Shutdown. FreeBSD 9.2 manual pages. 2013-03-19.
Shutdown. Systemd manual pages. 2013. Freedesktop.org.
Shutdown. Upstart manual pages. 2009. Canonical Ltd.
InitiateSystemShutdownEx. MSDN. Microsoft corporation.
ExitWindowsEx. MSDN. Microsoft corporation.
REBOOT. Take Command / TCC Help. JP Software.

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