这并没有直接回答你的问题，但如果你只是想要进程间通信，你可以使用PowerShell，你可以只使用剪贴板。

在一个过程中

Set-Clipboard (MyText”)

在单独的过程中

$ clipValue = Get-Clipboard

然后你可以使用clipValue作为任何其他字符串。这实际上使您能够使用CSV文本字符串将整个环境变量列表发送到另一个进程

我已经用了几年的解决方案:

@echo off
rem Refresh PATH from registry.
setlocal
set USR_PATH=
set SYS_PATH=
for /F "tokens=3* skip=2" %%P in ('%SystemRoot%\system32\reg.exe query "HKLM\SYSTEM\CurrentControlSet\Control\Session Manager\Environment" /v PATH') do @set "SYS_PATH=%%P %%Q"
for /F "tokens=3* skip=2" %%P in ('%SystemRoot%\system32\reg.exe query "HKCU\Environment" /v PATH') do @set "USR_PATH=%%P %%Q"
if "%SYS_PATH:~-1%"==" " set "SYS_PATH=%SYS_PATH:~0,-1%"
if "%USR_PATH:~-1%"==" " set "USR_PATH=%USR_PATH:~0,-1%"
endlocal & call set "PATH=%SYS_PATH%;%USR_PATH%"
goto :EOF

编辑:糟糕，这是更新版。

在不重启当前会话的情况下，向路径中添加变量的最简单方法是打开命令提示符并输入:

PATH=(VARIABLE);%path%

并按enter键。

要检查变量是否已加载，请键入

PATH

并按enter键。但是，在重新启动之前，该变量将只是路径的一部分。

在Windows 7/8/10上，你可以安装Chocolatey，它有一个内置的脚本。

安装Chocolatey后，只需输入RefreshEnv.cmd。

我只是想说，那些使用Anaconda的人，当你使用chocoley Refreshenv命令时;所有与conda相关的环境变量都将丢失。 要解决这个问题，最好的方法是重新启动CMD。：(

我使用这个Powershell脚本添加到PATH变量中。 只要稍加调整，我相信它也适用于你的情况。

#REQUIRES -Version 3.0

if (-not ("win32.nativemethods" -as [type])) {
    # import sendmessagetimeout from win32
    add-type -Namespace Win32 -Name NativeMethods -MemberDefinition @"
[DllImport("user32.dll", SetLastError = true, CharSet = CharSet.Auto)]
public static extern IntPtr SendMessageTimeout(
   IntPtr hWnd, uint Msg, UIntPtr wParam, string lParam,
   uint fuFlags, uint uTimeout, out UIntPtr lpdwResult);
"@
}

$HWND_BROADCAST = [intptr]0xffff;
$WM_SETTINGCHANGE = 0x1a;
$result = [uintptr]::zero

function global:ADD-PATH
{
    [Cmdletbinding()]
    param ( 
        [parameter(Mandatory=$True, ValueFromPipeline=$True, Position=0)] 
        [string] $Folder
    )

    # See if a folder variable has been supplied.
    if (!$Folder -or $Folder -eq "" -or $Folder -eq $null) { 
        throw 'No Folder Supplied. $ENV:PATH Unchanged'
    }

    # Get the current search path from the environment keys in the registry.
    $oldPath=$(Get-ItemProperty -Path 'Registry::HKEY_LOCAL_MACHINE\System\CurrentControlSet\Control\Session Manager\Environment' -Name PATH).Path

    # See if the new Folder is already in the path.
    if ($oldPath | Select-String -SimpleMatch $Folder){ 
        return 'Folder already within $ENV:PATH' 
    }

    # Set the New Path and add the ; in front
    $newPath=$oldPath+';'+$Folder
    Set-ItemProperty -Path 'Registry::HKEY_LOCAL_MACHINE\System\CurrentControlSet\Control\Session Manager\Environment' -Name PATH -Value $newPath -ErrorAction Stop

    # Show our results back to the world
    return 'This is the new PATH content: '+$newPath

    # notify all windows of environment block change
    [win32.nativemethods]::SendMessageTimeout($HWND_BROADCAST, $WM_SETTINGCHANGE, [uintptr]::Zero, "Environment", 2, 5000, [ref]$result)
}

function global:REMOVE-PATH {
    [Cmdletbinding()]
    param ( 
        [parameter(Mandatory=$True, ValueFromPipeline=$True, Position=0)]
        [String] $Folder
    )

    # See if a folder variable has been supplied.
    if (!$Folder -or $Folder -eq "" -or $Folder -eq $NULL) { 
        throw 'No Folder Supplied. $ENV:PATH Unchanged'
    }

    # add a leading ";" if missing
    if ($Folder[0] -ne ";") {
        $Folder = ";" + $Folder;
    }

    # Get the Current Search Path from the environment keys in the registry
    $newPath=$(Get-ItemProperty -Path 'Registry::HKEY_LOCAL_MACHINE\System\CurrentControlSet\Control\Session Manager\Environment' -Name PATH).Path

    # Find the value to remove, replace it with $NULL. If it's not found, nothing will change and you get a message.
    if ($newPath -match [regex]::Escape($Folder)) { 
        $newPath=$newPath -replace [regex]::Escape($Folder),$NULL 
    } else { 
        return "The folder you mentioned does not exist in the PATH environment" 
    }

    # Update the Environment Path
    Set-ItemProperty -Path 'Registry::HKEY_LOCAL_MACHINE\System\CurrentControlSet\Control\Session Manager\Environment' -Name PATH -Value $newPath -ErrorAction Stop

    # Show what we just did
    return 'This is the new PATH content: '+$newPath

    # notify all windows of environment block change
    [win32.nativemethods]::SendMessageTimeout($HWND_BROADCAST, $WM_SETTINGCHANGE, [uintptr]::Zero, "Environment", 2, 5000, [ref]$result)
}


# Use ADD-PATH or REMOVE-PATH accordingly.

#Anything to Add?

#Anything to Remove?

REMOVE-PATH "%_installpath_bin%"