set windows and cmd proxy with powershell (default gateway)

set-gateway-proxy.ps1

# https://martin.hoppenheit.info/blog/2015/set-windows-proxy-with-powershell/
$reg = "HKCU:\Software\Microsoft\Windows\CurrentVersion\Internet Settings"
$settings = Get-ItemProperty -Path $reg

$port = 10809
# select the gateway ip address from the default route and extract the ip address
 $gateway = Get-NetRoute |
    where {$_.DestinationPrefix -eq '0.0.0.0/0'} |
    select { $_.NextHop }

 $gateway = $gateway -replace '.*?(\d+\.\d+\.\d+\.\d+).*', '$1'
 $cmd = "netsh winhttp set proxy ${gateway}:${port}"
#  $cmd
Set-ItemProperty -Path $reg -Name ProxyServer -Value "${gateway}:${port}"
Set-ItemProperty -Path $reg -Name ProxyEnable -Value 1
Invoke-Expression $cmd # need admin privilege

# convert to exe with https://apps.microsoft.com/store/detail/powershell-to-exemsi-converter-free/XPDCHZH119SRT8

z- disable-proxy.ps1

$reg = "HKCU:\Software\Microsoft\Windows\CurrentVersion\Internet Settings"
Set-ItemProperty -Path $reg -Name ProxyEnable -Value 0
netsh winhttp reset proxy