Exchange 2010 Mailbox Server Role Requirements Calculator - version 17.8 released on October, 2011

Exchange 2010 Mailbox Server Role Requirements Calculator - Released on October, 12th 2011 - version 17.8

https://blogs.technet.com/b/exchange/archive/2011/10/12/released-v17-8-of-the-exchange-2010-mailbox-server-role-requirements-calculator.aspx