PowerShell script to add Active Setup registry entries

I am interested in using Active Setup more throughout our environment. The thing I like about Active Setup is that if I screw up, it will only run once and not over and over! Kidding, but the “run one” nature of Active Setup is nice. I wanted a PowerShell function to create Active Setup registry entries, so I can script the updates on multiple machine. Here is that function:

Function JBMURPHY-AddToActiveSetup {
  Param([parameter(Mandatory = $true)]$ActiveSetupUniqueName,
	[parameter(Mandatory = $true)]$ActiveSetupStubPath,
	[parameter(Mandatory = $true)]$ActiveSetupVersion)
  $ParentKey="HKLM:Software\Microsoft\Active Setup\Installed Components"
  $Key=$ParentKey + "\" + $ActiveSetupUniqueName
  # Check for key
  if (!(Test-Path $Key)){
    New-Item -type Directory $($ParentKey + "\" + $ActiveSetupUniqueName)
  }
  else {
    write-host "Key exists"
  }
  Set-ItemProperty $($Key) -name "StubPath" -value $ActiveSetupStubPath
  Set-ItemProperty $($Key) -name "Version" -value $ActiveSetupVersion
}