param(
    [Parameter(Mandatory=$true)]
    [string]$url
)

function Write-Log($msg)
{
    Write-Host $msg -foregroundcolor green
    ($msg) | Out-File "log-enum-users-howzee.txt" -Append
}

function Enum-Users-Group($group, $arr)
{
    foreach ($user in $group.Users)
    {
        $arr.Add($user.LoginName) > $null
    }
}

function Enum-Users-Web($web)
{
    Write-Log ($web.Url)

    $groupHowzee = New-Object System.Collections.ArrayList
    foreach ($g in $web.Groups)
    {
        if ($g.Name -eq "Howzee")
        {
            Enum-Users-Group $g $groupHowzee
        }
    }

    Write-Log ([System.String]::Join(";", $groupHowzee.ToArray()))
}

$wa = Get-SPWebApplication $url
foreach ($site in $wa.Sites)
{
    Enum-Users-Web $site.RootWeb
}
#$site = Get-SPSite $url
#Enum-Users-Site-Col $site
#$web = Get-SPWeb $url
#Enum-Users-Web $web