Nagios XI and Windows Server 2008, XP and 7 SNMP

Hello Everyone,

I’ve recently installed Nagios XI on CentOS and I am trying to monitor Windows Server 2008, XP and 7 via SNMP Tracks or community strings. I have looked on the net but being a newbie I cannot find out how to load the proper MIBs, plugins etc. Is there a tutorial out there, a link, a book that would describe this process to be in detail?

your assistance is appreciated.