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1.1.0

private/get-wellknownsid.ps1

                                function get-wellknownsid {

    Param (

        [System.Security.Principal.WellKnownSidType]$account

    )

    begin {

        $DSE = ([adsi]"LDAP://rootDSE")

        $ADSIDomain = [adsi]"LDAP://$($DSE.defaultNamingContext.value)"

        $thisDomain = @{

            DN = $DSE.defaultNamingContext.value

            DNSRoot = $ADSIDomain

            NetBIOS = $env:UserDomain

            SID = (New-Object 'Security.Principal.SecurityIdentifier' [byte[]]($ADSIDomain.objectSID).value,0).value       

        }

    }

    process{

        $SIDSuffix = [System.Security.Principal.WellKnownSidType]::$account.value__

        "$DomainSID-$SIDSuffix"

    }

}