How to check if PowerShell snap-in is already loaded before calling Add-PSSnapin

Question

I have a group of PowerShell scripts that sometimes get run together, sometimes one at a time. Each of the scripts requires that a certain snap-in be loaded.

Right n

Answer 1

Scott Saads works but this seems somewhat quicker to me. I have not measured it but it seems to load just a little bit faster as it never produces an errormessage.

$snapinAdded = Get-PSSnapin | Select-String $snapinName
if (!$snapinAdded)
{
    Add-PSSnapin $snapinName
}