Ensure-Chocolatey.ps1

if($IsWindows)
{
	if(-not $env:ChocolateyInstall -or -not (Test-Path "$env:ChocolateyInstall"))
	{
		Write-Host "Chocolatey Not Found, Installing..."
		Invoke-Expression ((new-object net.webclient).DownloadString('http://chocolatey.org/install.ps1')) 
	}
}