Windows Server 2008 based network monitoring tool

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http://serverfault.com – I'm look a network monitoring tool like Icinga Or Nagios, which can be installed on Windows server 2008. So that i can monitor most of the machine in the network. Monitoring printers User Machines Other server There is not possibility to install any kind Linux machine in this network. So, Please recommend windows based solution. :) Thanks, (HowTos)