Managing Proxy Settings with PowerShell

I find myself changing proxy settings often on my laptop between various environments (Home, Production and Test). Generally this is no big deal. But today, I found myself switching multiple times as I was testing ISA and realized that PowerShell can easily take care of this.

At some point, I will wrap this into a GUI but for now, here is the script.

Note: I am using Jeff Hick's Test-RegistryItem.Enjoy!

function Set-Proxy {          
  [cmdletbinding()]          
  Param (          
      [Parameter(Position=0,Mandatory=$True,          
       HelpMessage="Enter either `"Home`", `"Production`" or `"Test`".")]          
      [ValidateNotNullOrEmpty()]          
      [ValidateSet("Home", "Production", "Test")]          
      [String]$Location          
  )           
            
  $path = "HKCU:\Software\Microsoft\Windows\CurrentVersion\Internet Settings"          
  $url  = "http://autoconf.FatBeard.com/proxy.pac"          
            
  switch ($location)          
  {          
      "Home" {           
          Set-ItemProperty -Path $path -Name ProxyEnable -Value 0          
          if (Test-RegistryItem -Path $path -Property ProxyServer) {          
              Remove-ItemProperty -Path $path -Name ProxyServer          
          }          
          if (Test-RegistryItem -Path $path -Property AutoConfigURL) {          
              Remove-ItemProperty -Path $path -Name AutoConfigURL          
          }          
      }          
      "Production" {          
          Set-ItemProperty -Path $path -Name ProxyEnable -Value 0          
          Set-ItemProperty -Path $path -Name AutoConfigURL -Value $url          
      }          
      "Test" {          
          Set-ItemProperty -Path $path -Name ProxyEnable -Value 1          
          Set-ItemProperty -Path $path -Name ProxyServer -Value "TestProxy-vt01:8080"          
          if (Test-RegistryItem -Path $path -Property AutoConfigURL) {          
              Remove-ItemProperty -Path $path -Name AutoConfigURL          
          }          
      }           
  }          
}

Enjoy!