param($userdomain, $username, $password)

# Load AD module, otherwise Get-ADComputer won't work
Import-Module ActiveDirectory

# Generate credentials object for authentication
$SecPasswd   = ConvertTo-SecureString $password -AsPlainText -Force
$Credentials = New-Object System.Management.Automation.PSCredential ([string]::Format("{0}\{1}",$userdomain,$username), $secpasswd)

$result = @(Get-AdComputer -LDAPFilter "(name=*)" -Credential $Credentials -SearchScope Subtree -SearchBase "CN=Computers,DC=meulab,DC=com,DC=br").Count

if ($result -gt 0)
{ Write-Host "$($result):Error"; exit 1; }
else { Write-Host "$($result):Ok"; exit 0 }