PowerShell: Load WebAdministration in ps1 script on both IIS 7 and IIS 7.5

Question

I have a PowerShell script that configures web site and web application settings in IIS. So I use the cmdlets in the WebAdministration snap in. But this script needs to run on

Answer 1

Is it possible to catch the error from one or the other, and do the opposite. Dont have my shell handy but something like:

$succeeded = import-module WebAdministration
if (($succeeded -ne $null) -and ($succeeded.GetType() -eq [System.Exception]) {
  #Could not import, trying to snapin
  add-pssnapin WebAdministration
}

Actually thinking about this a bit more...

$hasSnapin = get-pssnapin | Select { $_.Name.toLower().Trim() = "webadministration" }
if ($hasSnapin -ne $null) {
  add-pssnapin WebAdministration
} else {
  import-module WebAdministration
}

On the first one, I know the error type check will probably need to be modified. As far as the work going on, this can actually be done in C# by looking in the registry for loaded snapins, or the IIS version installed on the machine and then use the appropriate method.