$hostname = hostname
$groups = net localgroup | Where-Object {$_ -AND $_ -notmatch "command completed successfully"} | Select-Object -skip 2
foreach ($g in $groups) {
    $group = $g.replace("*", "")
    $members = net localgroup $group | Where-Object {$_ -AND $_ -notmatch "command completed successfully"} | Select-Object -skip 4
    if ($members.length -eq 0) {
        continue
    }
    foreach ($member in $members) {
        Write-Host $hostname";"$group";"$member
    }
}