License Key

Hi
guys<o:p></o:p>

How
much does a License Key cost?<o:p></o:p>

what
is the maximum number ofservers
one License Key can be used on?<o:p></o:p>

Does
it have an expiry date?<o:p></o:p>

Regards,<o:p></o:p>

Sannah
<o:p></o:p>