This function updates paths and sets environment variables the same way a Visual Studio developer console does

Initialize-VS.ps1

function Initialize-VS {
  $vsPath = & (Join-Path ${env:ProgramFiles(x86)} "\Microsoft Visual Studio\Installer\vswhere.exe") -property installationpath

	if ($vsPath -is [array]) {
	  $last = $vsPath | Select -Last 1	
	  Import-Module (Join-Path $last "Common7\Tools\Microsoft.VisualStudio.DevShell.dll")
	  Enter-VsDevShell -VsInstallPath $last -SkipAutomaticLocation -DevCmdArguments '-arch=amd64 -no_logo'
	} else{
	  Import-Module (Join-Path $vsPath "Common7\Tools\Microsoft.VisualStudio.DevShell.dll")
	  Enter-VsDevShell -VsInstallPath $vsPath -SkipAutomaticLocation -DevCmdArguments '-arch=amd64 -no_logo'
	}
}