Outlook signature

Hi,
Need help to add signature to email
my code:
$Outlook = New-Object -comObject Outlook.Application

$mail = $Outlook.CreateItem(0)
$mail.Subject = “TTT”
#$mailSign = Get-Content ($env:USERPROFILE + “\AppData\Roaming\Microsoft\Signatures*.html”)
$mail.Body = "Hi, "

$mail.Save()

$inspector = $mail.GetInspector
$inspector.Display()

Struggled with that one, this worked for me.
Although is doesnt look very nice…

$text="hi guys"
$temp=$mail.body  
$mail.htmlbody=get-content $env:appdata\Microsoft\Signatures\*.htm 
$mail.body= $text +$mail.body + $temp

http://stackoverflow.com/questions/24044681/powershell-open-email-draft-with-signature

Thank you both,
and what about outlook template file .oft, how i can open it?
Thanks.

just one more, how i can show signature image

Thanks.