Add-PSSnapin Microsoft.SharePoint.PowerShell

I have seen quite a few articles mentioning Add-PSSnapin Microsoft.SharePoint.PowerShell lately. But what is the best way to load this snapin?

Load the SharePoint PowerShell with add-pssnapin

Quite a lot of variations I have found for loading the Snap-in. But I quite like this version:

Add-PSSnapin Microsoft.SharePoint.PowerShell
function Load-SnapIn
{
   $ver = $host | select version
   if($Ver.version.major -gt 1)
  {
     $Host.Runspace.ThreadOptions = "ReuseThread"
  }

  if(!(Get-PSSnapin Microsoft.SharePoint.PowerShell -ea 0))
  {  
   Write-Debug "Loading Microsoft.SharePoint.PowerShell"
   Add-PSSnapin Microsoft.SharePoint.PowerShell
  }

}

Unload the Microsoft.SharePoint.PowerShell snapin

But if you load a snapin should you not unload the snap in when you’re done? I found the Remove-PSSnapin that does this for me:

Function Unload-SnapIn
{
   Remove-PSSnapin  Microsoft.SharePoint.PowerShell
}

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