Disable/enable a given path from the PATH environment variable

Question

I am looking for a program for Microsoft Windows 7 that lets the user disables/enables a given path from the PATH environment variable in a convenient way through a GUI. Rapid Environment Editor is great to manage the PATH environment variable but it doesn't have this option to my knowledge (can only add/remove a path).

The feature would be somehow similar to CCleaner's feature to disable/enable a given program at startup:

Answer 1

EDIT: Path Manager does not work well at all -> https://superuser.com/questions/891899/issue-when-disabling-a-path-using-path-manager/892798#892798

How about PATH Manager The screenshot shows an "active" column.

Answer 2

After some more digging I did still not find a program which does what you want. However, you could create a PowerScript for your purpose. This can be used as starting point:

#requires -version 2

param(
    [string] $AddedFolder,
    [bool] $ApplyImmediately = $true
)

$environmentRegistryKey = 'Registry::HKEY_LOCAL_MACHINE\System\CurrentControlSet\Control\Session Manager\Environment'

$oldPath = (Get-ItemProperty -Path $environmentRegistryKey -Name PATH).Path

# See if a new folder has been supplied.

if (!$AddedFolder)
{
    Write-Warning 'No Folder Supplied. $ENV:PATH Unchanged'
    return
}

if ($ENV:PATH | Select-String -SimpleMatch $AddedFolder)
{
    Write-Warning 'Folder already within $ENV:PATH'
    return
}

$newPath = $oldPath + ’;’ + $AddedFolder

Set-ItemProperty -Path $environmentRegistryKey -Name PATH -Value $newPath

if ($ApplyImmediately)
{
    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

    # notify all windows of environment block change
    [Win32.Nativemethods]::SendMessageTimeout($HWND_BROADCAST, $WM_SETTINGCHANGE, [UIntPtr]::Zero, "Environment", 2, 5000, [ref] $result);
}

Source: http://poshcode.org/3537