CmdID / PowerShell / Cmdlets / Get
Get-SmigServerFeature
Gets the set of all Windows features that can be migrated from the local server or from a migration store. Windows Server PowerShell reference
From the Windows Server PowerShell reference 2 parameters Its page in the reference
Parameters
-PasswordSpecifies the password, as a secure string, to decrypt the migration store.-PathSpecifies the path to the migration store from which you want to retrieve Windows features.