windows 强制环境变量更改立即生效
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Forcing environment variable changes to take effect immediately
提问by dch
I need to change the value of the Cygwin environment variable CYGWINon one of my installs from:
我需要CYGWIN在我的安装之一中更改 Cygwin 环境变量的值：
ntsec tty
back to the default value of:
回到默认值：
ntsec notty
I can do this programmatically via a .reg file:
我可以通过 .reg 文件以编程方式执行此操作：
Windows Registry Editor Version 5.00
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Session Manager\Environment]
"CYGWIN"="ntsec notty"
but it doesn't affect current or subsequent command prompts until a reboot. I don't want to have to reboot! Is there any way I can force this change to apply to, at the very least, subsequent command prompts, immediately?
但它不会影响当前或后续的命令提示，直到重新启动。我不想重新启动！有什么方法可以强制此更改至少立即应用于后续命令提示符吗？
回答by dch
This is very easy to fix & you shouldn't kill explorer to do it. TL;DR use:
这很容易修复，你不应该杀死资源管理器来做到这一点。TL; DR 使用：
setx.exe var value
to make changes available in future command windows, and in all active windows processes that support WM_CHANGESETTINGS API. You can do this for system environment vars as well, which will be propagated to services that support this API.
在未来的命令窗口和所有支持 WM_CHANGESETTINGS API 的活动窗口进程中进行更改。您也可以对系统环境变量执行此操作，这些变量将传播到支持此 API 的服务。
This doesn't change the current CMD.exe or cygwin shell as neither of them support it.
这不会改变当前的 CMD.exe 或 cygwin shell，因为它们都不支持它。
In those the humble set var=value or export var=value will need to be done once per shell.
在那些不起眼的 set var=value 或 export var=value 中，每个 shell 需要执行一次。
http://support.microsoft.com/kb/104011for more info.
http://support.microsoft.com/kb/104011了解更多信息。
A+ Dave
A+戴夫
