How To Install The SharePoint PowerShell Snapin

Apparently there are a number of ways to do this:

• A shortcut to %SystemRoot%\system32\WindowsPowerShell\v1.0\powershell.exe -NoExit add-pssnapin microsoft.sharepoint.powershell
• Putting Add-PSSnapin “Microsoft.SharePoint.PowerShell” -ErrorAction SilentlyContinue at the start of any SharePoint PowerShell scripts
• Creating a PowerShell profile using the commandlet:
  

  if (!(test-path $profile.AllUsersAllHosts)) {new-item -type file -path $profile.AllUsersAllHosts -force}
  powershell_ise $profile.AllUsersAllHosts

  Then adding the following code to the start of your script:

  $ver = $host | select version
  if ($ver.Version.Major -gt 1) {$host.Runspace.ThreadOptions = “ReuseThread”}
  if ((Get-PSSnapin “Microsoft.SharePoint.PowerShell” -ErrorAction SilentlyContinue) -eq $null) {
  Add-PSSnapin “Microsoft.SharePoint.PowerShell”
  }