#Alan dot Kaplan at VA dot Gov
#10-9-13
#Based on Get_User Last_Logon_v1.1.ps1, by Ahmed MALEK  - 3/17/13
#Kaplan overhauled the select of domain and domain controllers

#requires -module ActiveDirectory

import-module activedirectory

cls
$adDomain = Get-AdDomain
$DNSDomain= $adDomain.dnsroot
$dom = $DNSDomain

$DNSDomain = Read-host "Search what domain (ENTER for $DNSDomain)"
if (!$DNSDomain){$DNSDomain = $dom }

$DomainControllers = Get-ADDomainController -server $DNSDomain  -Filter {Enabled -eq $true} |Select-Object -Property hostname
$samaccountname = Read-Host "What is the user's samaccountname? (Ex: $env:username)"
$samAccountName = $samaccountname.ToUpper()

#mostly Malek follows
"Checking all DCs in $DNSDomain ...`n"
foreach ($DomainController in $DomainControllers) 
{
        $domaincontroller.hostname + " ... "
		$UserLastlogon = Get-ADUser -Identity $samaccountname -Properties LastLogon -Server $DomainController.hostName
		if ($RealUserLastLogon -le [DateTime]::FromFileTime($UserLastlogon.LastLogon))
		{
			$RealUserLastLogon = [DateTime]::FromFileTime($UserLastlogon.LastLogon)
			$LastusedDC =  $DomainController.hostName
		}
}

"`n`n"
if ($RealUserLastLogon -eq "12/31/1600 19:00:00"){
    "$samaccountname has never logged on"
}
ELSE{
#Kaplan
    [void][System.Reflection.Assembly]::LoadWithPartialName('Microsoft.VisualBasic')  
    $strOUT = "The last logon for $samaccountname was on $LastusedDC at $RealUserLastLogon"
    $message = $strout + "`nDo you to copy this information to your clipboard?"
    $retval = [Microsoft.VisualBasic.Interaction]::MsgBox($Message,'YesNo,systemmodal,Question','Copy')
    if ($retval -eq 'Yes') { 
        $strOUT | Clip  
        write-host "Done!"
    }
}